OK - it's taken me until today to give this more attention. To keep things going I just swapped the Plus motherboard and back case with my 512Ke.

Here are a couple of pics of the analog board. Clearly the damage is quite extensive.

http://school.anhb.uwa.edu.au/personalpages/kwessen/Home/PlusAnalog1.jpg

http://school.anhb.uwa.edu.au/personalpages/kwessen/Home/PlusAnalog2.jpg

Ken