Unplanned engine/tranny swap - help?

[BEER HAULER]

So... I let my friend borrow my 1965 GMC 1-ton flatbed (305V6).

He called yesterday nearly crying. Apparently ran it out of oil.

So... a SBC/700R I have is what I intend to swap in.

I did a brief search here on the swap and found some info on a 67 swap.
Are the motor mounts the same? Available here?

THANKS!