The (now defunct) yahoo wylo2 group, posted an updated (2014) worldwide register of wylo 2 ' s. The numbers below are changing as new info wylo's comes in.
About 45 wylo2's were reported launched and sailing. Nine gaff rigged wylos were listed as under construction ashore
Most Wylo2's are gaff rig, several are 2 mast junk rigged and one is Bermudan cutter rigged. Most are 32 footers and about a dozen are are 35 footers. 20 boats have full keels (FK 4'3" draft), 20 boats have centerboards (CB 3'3" draft), 3 boats have wing full keels (WK 3'9" draft).
In the 35 foot full keel gaff class, similar to my hull, there are only 9 sailing in the world. Most 35's are in the UK.
In Australia/NZ there are approx 13 wylo's. There are 8 wylos built in Australia. 6 are 32' CB gaffers, one is a 35 FK bermudan In NZ there are four 32 ft CB gaffers and one 35 foot wing keeled gaffer operating. 35 footers are rare south of the equator. A 35 ft FK gaffer (Ironbark) built in Queensland, sometimes stays in NZ and spends most of her time in many destinations around the world.
As for auxillary engines most are diesel of 14-30 HP. A few may be petrol. several UK wylos have hybrid engines and one from Canada has a Thoosa 9000 electric motor fitted.