I have an original Bifrost with no USB input that I'd be willing to part with for $240 plus shipping (in silver). It's got some minor wear (not mint, but certainly presentable), no original box or power cord, and works perfectly. I updated to a Bifrost Multi and currently have no use for it. I also have a cobbled together Bifrost-ish unit that was built using e-bay power supply boards and analog boards that includes a USB board (V2), in a DIY wooden enclosure. The "power supply" board is the first series that occasionally glitched (for some users... mine has never done that) when trying to lock on an incoming signal (which is why the boards were for sale on e-bay... Schiit dumped them all and re-designed them). The Analog board is actually labeled a Gungnir, but has only a single ended (RCA) input. I paid about $120 for the 3 boards, and would happily sell the little Frankenstein Bifrost for that (no charge for the wooden enclosure). I tried to buy a real metal case for it from Schiit, but they won't sell them.
Lemme know if either unit would work for you?
Neil