I thought you'd enjoying seeing this photo Don Garber (Fi) sent me of an integrated 300B stereo amplifier prototype that Don built "for Gideon Schwartz of Audio Arts which he's taking out to RMAF to pair with the Voxativ speakers. He has a team that's going to be producing it. How close to the original prototype it'll be I don't know."
I love Don's designs that use the 3-D chessboard-style chassis. What a beauty!