What gearing do they have and what is their condition?
It really depends on what kind of shape they are in. As for the swap itself, head over to pirate4x4. There is a TON of info on that exact swap and countless build thread where you can see exactly what others did to make it work. There probably 6 lug axles, so you'll need some 6 lug wheels or you'll have to swap them over.
Waggy 44's are good axles all around if you can get them bought right and in good condition. If you've got to sink a ton into them, then I wouldn't do it but that is just me.