Back2roots version is still only WHDLOAD anyway (I think, from memory).
Dude, seriously. I understand that money might be a bit tight at the moment, what with fuel etc, but SERIOUSLY consider getting some FASTRAM for the 1200, it runs like a {bleep} without it.
When the CPU runs off Fastram, it actually runs slightly better, as when the A1200 is running, the system is having to share accesses to CHIPRam with the custom chips. If the CPU has access to Fastram, it is *ALOT* happier.
You will also find WHDLOAD works ALOT better with it.