Thanks DRFTKO
This site is mostly pretty useful, however a big problem is that since Xmods were generally in their prime 15 years ago, a lot of the links/photos aren't working anymore. And I think there must be threads that have expired as some sections are quite empty.
But that's OK, the main core of info here is very helpful.
Plus I guess battery technology has come a long way.
I'll definitely look into the Lipo mod though.
One thing I couldn't seem to find info or photos of is the cutting of the stock circuitboard heatsink to accommodate stacked Fets.
It isn't mentioned much here, but is mentioned on FB groups; however since most people tend to upgrade the boards, I guess its not covered much, or has been lost in the sands of time.
When I get a chance I'll try to dig deeper.
But in the meantime at least I have a working car at the moment.