FIXED!Adding the resistors to RP106 and RP107 fixed the initial issue with stability, but adding the A508IDE caused software crashes to return.
I replaced the CPU with an HCMOS part (Hitachi HD68HC000P8, but any 68HC000 part should work). Every NMOS CPU I tried experienced the same software crashes. Sucks I won't be able to use a 68010, but it does me no good if it doesn't work at all.
Thanks for all of the help fellas! I hope this thread can help other people try to resolve similar issues.
