Starting out, need some advice on getting dads Pete rolling

Hello all, new to the forums, here's my situation;
My father left me a 04 387 Peterbilt and runs great, its sitting in our alley and Its needed to get my family fed. The issue is the very rear gearbox yoke nut...I need to replace the bearing in that and am stuck on the yoke nut. I first need advice on what kind of torque impact wrench I need, I have access to a quincy air compressor w an ACFM of 17/2 @ 175 PSIG. I have a couple of options hoping to get some honest answers on each please,

the red matco is a used MT2234 Matco Tools Impact Wrench 3/4" Composite High Torque 1800 ft/lb torque
the black is a HUSKY 3/4 IN. IMPACT WRENCH 1400 FT.-LBS H4490
and the bad mama jama silver is from tool planet a stark 2000 ft/lb torque,
any advice?? please help? I don't want to be stuck w one that doesn't do the job the silver one is really cheap price don't want it to break on me, and yeah please help!

 

eaton fuller super10

well I am wanting to buy the proper impact, just was wanting opinions on brand and what kind of torque I will need to get that nut off, I plan on heating the heck out of it w a torch,
the stark (2000ft/lb) is $200
the matco (1800ft/lb) is $280 used, although new they go for $900
and the husky is like $60

not sure which is the better deal out of the three, I really want that stark it looks the most heavy duty but for $200 brand new its very fishy, should I just go w that matco?

 

what tool did you use to pull that yoke? would I be able to pull it w a regular puller or do I need one of these heavy duty like tiger makes?