Just an FYI, if anyone else local wants one welded up for a good price, solman on here does a great job and is in South Central PA.
Forget the 8.8 wiki on this forum; they stole it from another site, and it's only the first bit of information. The thread in it's entirety will answer pretty much any question you have:
What else did the axle have on it? Look at the brakes if they're present and decide whether you need to refresh them or not. I'd make sure the e-brake functions/moves smoothly, and refresh if needed. E-brake cables as mentioned if you're TJ came with drums; if it came with disc brakes you should be good to go. I assume you have calipers, rotors, etc.?
ECGS has pretty good pricing, and they give discounts if you're a member of Pirate4x4. You can get pretty much anything else you need from them. If there is something you need and it isn't listed on their site, they can get it for you if you call or email. They will have the brake lines you need, as well as the flange adapter. They also sell a replacement yoke so that you don't need the adapter if you want. I've got one that I'm going to install when I get the axle regeared.
While you have the axle off, do yourself a favour and flip the calipers to the front of the axle to give yourself some more room in case you decide to outboard shocks in the future. It's not hard; remove everything on the ends of the axle including the backing plate, and simply swap side for side. Then, you can use these brackets to attach the e-brake cables:
Wizard Brackets - Reverse TJ Style Parking Brake Cables
Not only does it create more room, but your e-brake will now be much stronger.