is it possible, if you have the skills, and the schematics? My birthday is closing, and my parents haven't got any idea what to buy for me, and knowing that my father has some good skills with electronics(studied it for a year or two) I'm curious if it is possible to build a tube amp from scratch based on schematics, AND if it would save on costs. I know cabbuilding won't save you a lot of dough. But let's say I decided to use schematics for a marshall tube bass amp that they don't build anymore. How much would it cost me, of course just the tubes would set me back a bit, but the rest, what would be a good estimate?(we have all the tools needed already, so just components..?) And is it legal to copy the schematics and build your own amp based on these? if anyone could chime in on these issues..?