Could anyone with an inline 6 help?

[Backpayne]

Would anyone with a '63-'66 Chevy/GMC truck and an inline 6 take some measurements for me? I am installing a 292 in a '66 GMC with aftermarket frame/engine mounts and want to get it in roughly the factory placement, but the factory crossmember is gone. Even just sharing pictures would help a lot.

1. Distance from front of block to frame cross braces that the radiator sits on.

2. Distances from left and right frame to center of crank snout/harmonic balancer.

3. What degree should the engine be leaning back?

These will greatly help me install my 292.

Thanks!