At 4.5 inches of lift a sye and axle shims will probably be necessary to stop the drive line vibes, also consider spending on some nice shocks (Bilstien, Fox, OME, ect.) and not the junky ones that come with some lift kits
The headlights will need new housings for the hids, the IPF h4 housings are said to be some of the better ones for hid conversion.
The dash and interior leds will look awesome (I have the dash in red with white dome lights and red map lights) except for the HVAC controls that just look strange and barely light up due to the tinting.
Door removal is great (also something I've done) but there are some problems:
1) They are heavy to remove and reattach by your self, but it can be done.
2) The fronts have close to 25+ wires going to each door, you can unplug them under the kick panels and
fish them out through the hole, or do quick disconnects (I did the quick discos, more work to install,
works great, much faster than the other way).
3) The front speakers are mounted in them, so you'll lose them when you pull the doors, this could also
cause problem with the head or amp, unless you relocate the speakers to a more permanent location
(like a front sound bar).
4) Once you mod the hinges you'll have trouble lining the doors back up and some doors wont open or close
5) Depending on where you live you may need one exterior mirror to keep from being ticketed.
I would skip the exterior "neons", they'll just get broken, and you'll need a massive amount of them to keep the under glow nice and even and from looking like a few thin bars of light down the sides and bumpers due to the ride hight being so high. However if your doing something more like rock lights that is totally different and would fall more into the off road lighting category.
The stock speakers are 5.25 inch, but 6.5 inch replacements will fit in the stock mounting areas with no modifications aside from drilling two small holes.