Looking to get into a Ramcharger...

ive only seen 3 manual 4x4 ramchargers, a 75 318 NP435 truck trans, an 84 318 with the 4 speed OD, and a 78 440 NP435 4 speed. theyre a very rare critter to find for sale around here in the pacific northwest. A local junkyard here just got a 74 (manual hubs!!!) 400 weiand/holley top end TF727 9.25 dana 44 drivetrain in it, for sale!! has the usual fenderwell/fender corner rust but is very very straight. I was a little confused why it was there especially since it drove into the yard. Ive owned 4 70s vintage trucks, still have my 74, all except my 78 were smallblocks and manuals, the 78 was a 400/727. loved em all. parts for the drivetrain are very common and inexpensive. I prefer the manuals for putting in the hills. my 73 had a 360 np435A close ratio (4.56:1 low gear) 8.75 rear with 3.23s spinning 235-45 R15s. the 360 would purr at 2400 rpms doing 70+mph. was awesome on the highway, and was pretty giddy for in town mobbing. The 74 has a 318 NP435L 205 part time transfer case dana 44 front manual hubs and a 8.75 rear packing 3.55s rolling 31x10.50s. It does ok in traffic with the wide ratio NP435L (6.68:1 low gear) trans and highway cruising is about 2700 rpms at 65mph. My 76 was a 3/4 ton with 4.11s. was a beast under 55, over 55 it would eat the fuel big time. The 78 big block auto was factory ordered with 2.76s (yea what the hell?!) so it was a pig until about 35mph but it would fly down the road like nobodys buisness. so hopefully this might help out on what to look for drivetrain wise since theyre pretty much a truck with a fancy topper.