Looking for LT1 style front plate with input shaft bearing race, input shaft with bearing, main shaft with front bearing, 1-2 gear stack without slider/syncros, but with the 1-2 syncro hub, rear main shaft bearing, and a main case.

I need these parts as a setup for testing my T56 cable drive speedometer conversion for proper gear tooth engagement. So, gears don't need to be good, input and 1-2 can have all the teeth gone. I just need enough of the trans to hold the main shaft in place and have it rotate . I'm using my own T56 for testing the speedo cable mods and I'd really like to put the trans in my car like was originally intended.