Well its a thought since they are going on a TJ so there is more cutting and grinding than welding to get a set of perches on there, either SOA or SUA.
As far as 60's go - well a junkyard front and rear 60 can run anywhere from 300 (rear) to 1200 (front) from a ford. And now you have a full-width 60 with no gears, lockers.
Factor in cutting it down and re-tubing - another 300 or so, plus materials (tubing)
Locker for a 60 isnt cheap especially if you go with one styled like the 44 - either an electrc detroit or arb....either one about 800 installed.
Oh you want to steer?.....ok new drag link (might as well do 3/4" heims since its a 60, plus high steer arms since your SOA, as well as the tie rod (and its all DOM 1/2" wall material for strenght) That setup would run you about 400 or so.
Plus the fab your going to need to get them installed by either you or a shop - my call would be have a shop build them, then install yourself to save a few bucks.
The other thing you can do and I have seen more recently and they are still cheap is a new F250 / F350 front 60 and Sterling 10.25 rear - those can be picked up cheaper than old and need very little (well other than cutting, lockers, and gears)
So either way your spending a few bucks.
What I would do If i were you.......either find a set of waggy 44's (way cheaper) rebuild them install them and wheel it!
Or find a set of Scout 44's and repeat.
OR finally, find a Dana 44 from a XJ - install cromos in the front (with disconnect deleted) and go from there, would be a solid dependable drivetrain that requires very little work, effort and money
BTW im totally NOT trying to flame you at all - sorry if it comes off that way, just thinking and typing.
"Negative....I am a meat popsicle"