Hi 7Cain,
Well - I've been toying w/this idea for a coupla weeks. Sniperboy sent me a well used 239 and a destroyed (handles) Jaguar to experiment with. Last night I dis-assembled my Pacific Style bali (the 'sidewinder) - no big problem, right size drift punch and a hammer and the proper bench block. Then I carefully disassembled the 239 (can rebuild it if I decide the conversion is a no-go). The Jag was already "disassembled".
The major problem is the depth of the channel in the stainless handles from the sidewinder. If you look at it you will notice that the (for lack of a better term) bottom of the channel is about twice as thick as on a BM239. This will need to be machined out, and I am sending my sidewinder handles to a friend to have that done.
If, upon return, that provides enough clearance to close the handles around the blade, the next problem becomes the bearings. The 239 tang is drilled out to accept a free floating bearing, and then just a very thin pivot pin that goes thru its handles and the bearing. In order to use the sidewinder handles its oversized pin holes must either be firmly sleeved and the sleeve drilled to accept a pin of the original size the 239 used (best option, because then the original 239 bearings could be used as well), or some other conversion must be done. Then we come to the blade thickness to fork spacing problem. The sidewinder uses a nylon washer on one side of the tang only to make the fit correct. With the 239 blade in place this will also need to be done, tho a bronze alloy drag washer from a topnotch fishing reel repair kit would be a better option.
So, you see it won't exactly be an easy conversion - but it is possible. The biggest problem is the channel depth - and that must be milled out before I'll even know if it will work at all.
It will probably be a while before I get back to this project - but I'll keep you all posted.
Bob