Andy,
To solve the double sided and alignment problems at the same time, use
this stuff: 5.5" x 6" Scissor Cut SS Copper Clad 0.016" thick.
http://www.goldmine-elec-products.com/prodinfo.asp?number=G15697(I am not affiliated)
It is thin enough to see through. Do each side on a separate and than
epoxy them together for well aligned double sided.
Richard