There was a clip the other day of a guy using a small rechargeable angle grinder with a circular saw blade instead of a disc. Terrifying. Sort of thing our favourite luthier might devise......
On the other hand I spotted a lefty Yamaha TRB1005j on reverb that popped up on Gumtree in Wapping.
Result I went there one evening and he asked for £300. Heavy thing tho....