Pics please. ... Particularly if you have any shots showing the any reshaping the combo tool to get it to engage the backspring, and what backspring you used.
No reshaping? My plans just got easier! I was asking for pics if there was any reshaping, but it sounds like just open the hole up and it will drop into the 111mm frame. Excellent. And some donors get here tommorrow...
IMO, as this is a mod to include the OHO blade, then I'd make the OHO blade the priority; so option B for me.
Wow, this is a very cool mod! Well done