There is a very nice junk rigged Coromandel for sale in Scotland. She is advertised on Apolloduck for £3k which looks very good value given new rig and sail. No vested interest just for info!
The Coromandel has the same hull as a Corribee, but the cabin is a little bigger as it is almost full width, and it has a very small amount of extra headroom. According to the brochure, the idea was that you don't need big side decks on a junk rigged boat as you won't need to go forward much. The main cabin is made smaller by having a separate heads, although this can be removed. Also bear in the mind the large junk mast bisecting the forward berths, as seen in the photos of the Scottish one, which does look a very neat example.