Yeah, other than Elenco, pretty much everything else will just be a board and parts. I built one that way several years ago - pre-assembled LM350 board, $5 panel meter, switch, binding posts, RadioShack transformer all inside a cheap, thin aluminum, snap together Bud box. Total cost probably close to $50, but I already had everything but the box and board, so it made some sense at the time and it works fine for what it is. Of course, for a halfway decent off the shelf bench supply you're probably going to have to spend 3x that much.