I don't know specifics about the V-set, or the NSWGR steamers, but one content creator is slowly working on making some QR steamers (BB 18 1/4, C17 and associated items), but as can be imagined, its a slow process, and requires a lot of work.
Search for MSTNoodle. There should be a DD17. There are also 3ft 6in. wheels that can replace the standard gauge ones. MSTNoodle also has a QR carriage.