Marantz SA-1 modders and transport change

I have heard that it is impossible or very hard to get a new transport for SA-1 if it dies. However it is a Philips top of the line pro transport and seems to be very reliable.

Anyway my question is if it is possible to change the transport to something else if someday it still happens and the transport still dies?

I ask this because SA-1 is just the best digital that I ever heard and I love it so much that ..., yes I can always hunt for new (used) one but comparing it to numerous newer much more expensive top tier digital I just ... want to keep it forever!

I don't want to hack it now but someone skilled please let me know if it is theoretically possible?

P.S. I already have SA-1 service manual.