As far as the Artec kit goes, I'm siding with the "stay away from Heim joints" crowd; either fab or buy your brackets and spend the extra caps on JJ's. The tube is...well, it's tube. Nothing difficult there.
I'll second this. Cycleguy-you live in WA and on the wet side at that. Not sure where you wheel, but the only heims I have on my rig are my front/rear ARs. They are regular maintenance items as they just don't last with the wet/mud/grit we have all over the state. At the cost of the heims for your suspension, I'd NOT want to be replacing those on a regular basis. The JJs in my old setup lasted me many years. I tore them down, cleaned them all up and they are now running on another rig where I expect many more years of reliable use. My new build runs the 2.5" 1.25" shank JJs throughout simply because of how well the old ones worked. Virtually zero maintenance, quiet, simple and just plain work. Why mess with a good thing? Scott at DirtFab was excellent to work with, shipped very fast and awesome on the customer service side of things as well as gave a nice discount. I'd give him a call when you're ready. Gerald was out when I ordered my stuff so I couldn't track him down at that time. He's also another great vendor to order through at Savvy with great deals on Currie stuff. Artec makes excellent stuff as well-if I could have paid the bill, I'd have likely gone that route rather than building everything myself. IF you go with their brackets, talk to them about a package deal for everything you need except the joints, get the JJs elsewhere-unless they can get them for comparable price of course... With package deals like this, you're often better off biting the bullet and doing one single large purchase where the vendor can offer slightly better breaks on many items rather than a tiny break on a single if that makes sense. More up front cost for you yes, but often less money as a whole in the long run.
Tube is tube is tube-maybe so, but it isn't quite that simple. Pick your joint size then decide on type of tube, weights, material makeup, aluminum or steel, heat treated, desired strength, etc. Do NOT overlook bung size and dimensions and what it will take to fit to the tube if you need them. Don't forget this additional cost either for bungs and nuts-they add up quick with 14 joints... My 1.25" shank JJs are attached to 1.75" .188 wall 4130 heat treated chromo tube which required machining out the inner ID of the tube enough to fit the 4130 bungs before they could be TIG welded fully and plugged as well before final heat treat. That's an extra step that could have been avoided with bigger diameter tube and/or thinner wall. Strength comes at a price and the more you add, the more it goes up. Decide what you want and how you want to go about getting it done-lots of ways to do this but it's a LITTLE more involved than what tube appears to be on the surface.
Having returned from a couple week trip, I am SO happy with the rig as a whole with the new suspension setup. Imped has done an excellent job nailing everything above and the only thing I can add is that I agree 100% with the numbers he's tossed out previously. With my setup, it is planted so well over the rough washboard crap compared to prior that I constantly found myself stopping to wait for the guys behind me who just couldn't keep up-not for lack of driving skill, but for lack of suspension to handle the terrain. Simply put, mine just soaks it up better which allows for faster speeds to the point you don't realize how fast you're actually traveling to get where you're going. It's really quite enjoyable. On the steep nasty off-camber stuff-Wow, all I can say. Where I'd spin prior, have wheel hop and bounce, It now climbs much easier and remains firmly planted. That translates to better traction on the ground and easier climbing ability.
I do have a few electrical issues to work out and a front locker problem now, but suspension wise-man, SO worth the work!!! Hurry up and start cutting-you have no idea how much better it will be once you're done!
Best of Luck,