Have IIgs, Help me with your knowledge.

[cward@adnc.com]

I have a IIgs I want to fix.
I think the Logic Board is bad 'cause I hook up four drives in any
combination and get 5-1 and 6-1 only.
I don't have 5-2 or 6-2.
I need to find a motherboard.
I need to find a SCSI card as well...
I have several IIc's I will trade for these parts.
I would like some software for my IIc  it is a 4.
I have a bunch of 255's, a 0, a3, and a 4.
How do I get a 3.5 drive to work on a IIc?
I hook it up but it won't do anything.
The light comes on but no noise.  It doesn't read or write.

Who know about the hardware?
Please help.
Willing to trade Macintosh parts  for parts to build a nice IIgs.

Chris...