'63 K NV4500 removal / reverse build thread

['63GENIII]

This is my first time posting any type of build thread so please be patient. I've learned so much from the members on this forum without anyone asking anything in return except pictures.... so that said here we go.
I bought this truck in 2008 from a guy in Oregon. Who said he was the 2nd owner. As I drove it back to the Bay Area, I promised the 396 that if it got me home that one day I would put an overdrive in it. I ended up getting towed home from Redding but I'm still keeping my promise. Enter the NV4500.
My '63 was an Oakland built K15 that may or may not have come with a small block and 4 speed. I say small block because it uses the small block motor mounts on the sides. There is now a 396 in its place and as far as I know, the mounts have not been moved. When I bought the truck in it also had a floor shifted TH400 of questionable durability. It also has an HEI with no firewall clearance issues or dents. Out front I installed the serpentine drive from a '97 454 with the reverse rotation water pump. Theres about 2" from the factory fan to the radiator. Main reason that I mention this is that I have heard alot of talk about moving the engine forward.