I got a used NV4500 off E-bay for $700 shipped to my door. I picked up the BELLHOUSING ONLY from Advanced Adaptors, for about $300 (they are pretty close so I went there to get it, got a nice tour of the place). I used a piece of 2"x3" box steal to space up the trans mount. You can use the stock transfer case lever, there is a hole taped in the side of the NV4500 that is right where the lever needs to pivot. $1000+ some oil, bolts, & welding wire..... Very simple.