I would be really interested in more info on this adapter. The Surpa swap is a big part of my fantasy life and that adapter could be easier and possibly less expensive, or even more reliable than paying for a custom bellhousing to be made.
Any further info on this yet? Especially what if any machining may have to be done to get it to fit and if the part is sold in the US. I've dealt with having stuff shipped from down under before and it is so friggin' expensive and slow that alone could potentially make it not worthwhile.
There probably isn't enough demand, but perhaps we could convince Marlin that this could be an interesting little project to figure out and add to the bounty on this site hint hint
PLMK. Thanks!