got a few new parts....and ordered some more
got a Link LEM v4 standalone ECU. and an Audi 2-wire IAC valve.
also, received and assembled (yea, it came as a pre-printed board and a bag full of components....) this little toy from Australia:
it's a programmable voltage switch. it detects a voltage on one circuit to control a relay. can be used for nitrous, rad fan(s), warning lights, etc. etc. etc.