You can get away with the trans the t-case if you would want to use a divorced t-case. Make a little driveshaft to the t-case then the other shafts to the axles, probably cheaper that way and still effective. I have no SAS experience on a Dana 44 or anything like that, I'm doing Rockwells so I do have some of the needed knowledge. How do you want to do the SAS. The most popular around here is a traditional ford style with radius arms. Some guys make their own and I've seen a few from Cage. I don't know what springs guys are using though. If you are seriously planing on 38s, you might want to consider something bigger than a Dana 44 if you are actually going to wheel it. If you do that you will need to find a different rear axle, unless you get the front narrowed. If you would back down to 35's a D44 should be safe enough. You need to create your own steering links as well as a trac bar and mount. I've seen a few mounts on here. I believe you can find an adjustable trac bar for a early bronco if I remember correctly. I don't know how high you need to go for 38s but that will play into a factor. You will need to set correct the pinion angle for the lift which is accomplished by welding the spring mounts in the proper location. But then you need to reset the castor of the knuckles. There is a lot to do; as long as you take your time, measure twice, cut once and make sure it's under the truck squarely you will be fine.
Matt