Its a really tight fit. Everything has to be squeezed in. After I put them in I have to use needle-nosed pliers to squeeze between the boards and plug in the leads.
I need to build the board and construct the full program even though I will never be technically able to run it with this microprocessor. The best I can do is to tell the emulator on the PC that I have the needed memory then test it to see if it would have run.