Questionable Amiga 1000 Modifications.

Upon further investigation, I think this is the results of the A1000 1MB Piggback Hack. I'm going to see to either re-finishing, or undoing this hack and moving forward. Any advice and knowledge is welcome. Original post follows.

I've recently acquired a non-functional A1000. The optimist in me suspected it could be resurrected, but looking at the thing there are a few oddities.....
On the mainboard:

• The CIA's have been removed.
• Sockets have been soldered on top of all the chips at B,C,D,E.
• Resistors soldered to, and then cut, on the chips at H,I,J.
  

On the daughter board:

• There is a jumper wire to soldered to PIN 20 of the DAUGCAS that is not connected to anything on the other end.
• PIN 10 of DAUGCAS and DPALCAS have been jumpered together, as has PIN 20.
• PIN 10 of DAUGEN and DPALEL have been jumpered together as has PIN 20
• PIN 13 and PIN 14 of the connector at P have disconnected jumper wires soldered to them
  

It would be simple enough to put in some CIA's and test thing, but given all the other oddities I see here, and the fact I've never owned an A1000 prior to this, I thought it best to ask the experts before doing anything further. My gut says that this all part of some sort of homebrew ram expansion that has been subsequently removed.

[Jope]

I had an A1000 that had the remnants of a very shoddy piggy back mod in it.. Really the best option is to revert it and then start debugging the machine.