A knocking L series is not a great thing.
The Maxima has a L24 with dished pistons where the 240Z had flat tops pistons.
I bought an 84 Maxima a while back and plan to turn it into a LeMon in the future.
FYI, I am in Houston as well.
The automatic does not have much value. I threw away several the other day that came in a parts lot I bought.
If I am correct, the automatics are only 3 speeds so a 5 speed would give you better gearing options which will be nice at MSR.
I plan to do a 5 speed swap on the Maxima I have. A 280ZX or early Z trans will bolt up. I don't know about the pedals though, I am hoping ZX pedals work.
I have bought several complete 280ZXs for $150 each now. Great source for drivetrain parts.
I wasn't planning to run the Maxima until next year but I may have to step up the plan a bit. I want it as a 510 alternative.
Troy
#35 LRE
1973 Datsun 240Z