Some good info when choosing a Ford D44 axle...
http://77cj.littlekeylime.com/Dana44.htm
If you can weld or have a friend that can weld then this could lower the money you spend on labor. You can get the RE front axle bracket kit OR if you don't want to drop $250 for the RE kit and have a plasma cutter or a steady hand with a grinder just remove the existing brackets from your D30 and welding them to the D44. Just remember that some Ford D44's that have the radius arm set up have the mounts for the arms cast on the axle so they WILL be a pain to remove if they are in the way of mounting the new brackets for the coil buckets or control arms. This is NOT a cheap or simple project, remember that you will also have to re-gear the front, set up custom steering, brakes, get new wheels, get a matching full width rear axle (can usually be found on the donor vehicle of the front axle, will more than likely be a 9" on these early era fords) , regear the rear axle, and all the other small things that I forgot to mention on a project of this size...

Fred R.