Interesting. Good luck with it. I'm sure at a good price it has a place.
It would be good if you can investigate the patched
card.resource which allows you to use the full 8MiB and the PCMCIA at the same time.
http://eab.abime.net/showpost.php?p=...&postcount=226
http://eab.abime.net/showpost.php?p=...0&postcount=28
Otherwise you'll need a jumper which can select between 4MiB and 8MiB to allow the PCMCIA slot to work.