I have wagoneer axles under my YJ. YJ axles are basically the same width as TJ ones. The waggy axles are very slightly wider than stock axles - I would say less than 2 inches overall. Therefore, width isn't really an issue, you can make up for it with offset if you are that concerned with it. The bigger hassle from your point of view is the brackets you'd have to cut off and weld to them. You might find it easier to buy something like the Rubicon Express heavy duty bracket kit than to try to salvage them from your old axles. You would want 86+ wagoneer if you want d44s front and rear and driver's side drop. Just make sure you don't get the vacuum disconnect ones.
Chad Lloyd 95 YJ 4.0 NP435 EBD20 woodies D44s 4.88 detroits SOA revolvers 35 X 15.5 SXs 8274