I am in the same boat not having a HD I was considering making a IDEFILE http://john.ccac.rwth-aachen.de:8000/patrick/idefile.htm and sorry for reviving this several month old thread. but if you get the GAL from him he has to ship from Germany so it may be worth ordering them at the same time to save on shipping. it costs 10 euros (as of today $15.52USD) plus shipping for the GAL chips. I am sure someone on here would be happy to help making the PCB I know I will need help I have never made one. I hope this helps this seemed like the most interesting fun (and cost effective) way to get a HD working on a lisa/Apple III. and I will be doing it as soon as I get my lisa fully working