New D-44 for XJ

Hey Brian - I am stoked, I found a way for me to get a 44 under the jeep for a cheap price! It will not be the be all end all of the axle; but I will be able to get it under the jeep for a cheap price considering it is a 44. Since I did get a nice bonus from the company this year; though not enough to purchase another reliable daily driver, I decided to put a set of 31 BFG ATs on the Jeep for commuting with the jeep. The manager of the local Discount Tire shop has a sick 2006 Jeep Unlimited on 37s. So while waiting, I was talking with him about the redicilious 44s he had on the LJ. He offered to sell me the rear stock 44 set up for disks; but with all of the disk parts removed - so I should just need capilars, rotors, and pads. I am not sure about what I will need to do to convert the brake lines from the ABS 35 to this 44 though. D44 with 3:73 gears for $300 and teh front D30 for another $100 so I can put the gears into my 30 and have extra 30 parts for breakage. My current gears are 3:55 and the honestly suck even w/ 31s. The D44 has posi lock. Which I think is automatic internal mechinish triggered to work as a limited slip so I will use this system with junkyard brake capilars until I can afford to have another daily driver and regear the axles for something a bit more ideal for 33s not with the DD status. I am thinking 4:88s with a OX locker; but not for a few years or when the next bonus comes around. Where I wheel/camp is 2 hrs away; so I like the idea of having a worth axle in the rear when I am using the 44s, even if it is not with the most powerfull gearing yet.
D44 - I will also need to cut off the spring perches and have leaf munts welded on. I am assuming I can cut the spring perches with a grinder as I do not have a plasma cutter. I also do not have a welder; so I will need to have the welding done by a shop. Do you know if any of the auto shops rent or loan tools to set the gears on a 30 and 44? Do you know anything about how a TJ/LJ D44 shock mounts would compare to the shock mounts locations needed for the XJ? It sure would be nice if the stock locations would work; but if not, I would assume that welding shock munts on would not be that big of a deal; but I am not sure where I would find the part that would do it?