Get a yj tub. find one thats not damaged and not rusted out,there are good tubs out there,Ijust bought one a week age for 550.00 great shape no rust.
If you go with a yj tub here are a few things I found out when I did my 83 cj-7
1)2 body mounts, the 2 in front of the rear tires must be moved(one on each side)then its a direct bolt on.
2)go with a hydraulic clutch(much easier to do)
3)you can use your instrument panel off your cj
4)I used a yj windshield frame
5) I welded my tailgate hinges to the tub so I could use my cj tailgate
6)might want to use a yj gas tank because your filler nozzle is on the opposite side of the jeep
just a few mods and your good to go.I think if you buy a yj tub and buy the parts you need to get her done ,you probably will spend the same amount then just buying a fiber or alum tub. thats just my opinion.
good luck ,keep us posted on your project.
btw boiler ,you moved just 2 mounts on your crossmember?just wondering because I just had to move 2 mounts that are on the outside of the frame
83 cj-7 258c.i., 727auto, d300, d44 front, d60 rear
92'yj 4.3(roller) tbi chevy,700r4 ,soa, 35-12.50-15 maxxis bighorns
89'yj wife's jeep 4.2l stock ,2"bl ,31-10.50-15 bfg mud terrains
work smarter not harder