you don't have to desolder anything, but you should if you want to save room. what you do next is get a screen, make a case, hack the controller to put it in the case, get a battery, get a dc-dc convetor, wire everything together, and put everything in the case
I've got a screen coming and i'm ordering a controller like the one from your guide tonight. Ive got the dc-dc converter. I know what switeches to get. So what kind of battery should I get?
ps the dc dc converter requires 9v
are there DPDT that let me charge while I play?
or could I desolder the power supply plus and put it on the side or something and then solder wires and reconnect it? And will the dc dc converter I got from Ti (the one in the forum) work right for the N64, or will I need something else?