Bellhousing, NV4500 and NP205

[stelth2002]

I am having some trouble finding the right information. First I will start off with what I want to accomplish. I need to use an aluminum bellhousing that will hook up to an SM465 fine. I would then like to mount up a 3/4 ton version of a NV4500 out of a newer gm truck. Are the bolt configurations the same on the front of the SM465 and NV4500? I know that they had certain years with different bellhousings and transmission hookups. I would then like to hook up a NP205 transfer case. What am i missing here? I reallly need some feed back on this. As I have helped people convert a 2wd truck to use a NV4500 but never 4x4. What kind of adapters and stuff am I going to incur. And I absolutly need to use the heavy version of this transmission to handle the torque.