you can look for alisons posts and many others how to do this
by hardwire in a 72pin simm to any stf/m etc...
so here is a link in ebay for
2X 8mb 8 chip per sided fastpage ok for st X
single side uses less space when its tight http://cgi.ebay.co.uk/72pin-simm-set-2- ... 35a612b2da
double side is aokhttp://cgi.ebay.co.uk/72pin-simm-set-2- ... 4838e54c3b
cost is about $2
i would fit a socket for the simm dont try to solder it direct
then if needed it can be changed out.. with less hasle
sockets are $2 or scavange one from an old pentium etc....
72pin angle sockets http://amigakit.leamancomputing.com/cat ... cts_id=594
about £5 for one