Well after cleaning out the local Maplin of 28pin ic sockets (ie, I bought both of them, so had to take half the stock of 32 pin ones, too.) I finally managed to get an econet module into the Master with a replay board in it, by means of elevating the replay board somewhat..
I also got around to fitting my GoMMC into it, now it's been on holiday to Holland for an upgrade and works in the Master.. (Many thanks, John!)
Has anybody any idea what the spare socket on the replay board is for??
Anyway - pics of the beast here: (small/large versions)small1 146KB
Maybe soon I'll be in a position to start sorting and archiving the many many floppies I have ...