Thanks all, I'll go back and re-read the article, as I confess it was a bit of a skim read
I'll look into the MFP 920, I may even have one lying around.
Trouble is, I binned a load of kit when I moved house last August, so I'm not 100% sure.
TBH, it's an STE housed in a STFM case that's already heavily modified, so I'm not beyond getting the tools out to do some mre case mods.
Since I want to mod the case to allow access for my CF card connected to AlanH's IDE adapter, I'll just add it to the to do list