@Z750Jay:
I would think the Footy and Micro Magic would be out of the question in big weather.
In fact if the DF65 is seriously in need of the B rig, you should stay home with a nice warm cuppa!!
Seriously though.... I have a B rig for my DF, have not needed it in months of sailing. We often sail at the top of A rig and you get an occasional wipeout but most of the time it is manageable. Instead of sailing downwind, sail slightly off the wind (broad reach) - more speed, less drama...
I imagine the rigs will come back in stock - the entire world seems to have been waiting for complete kits - they have just restocked USA, UK and Australia in the last week or so.
If you can get an A rig you could cut the lower mast section to suit, that is the only difference I believe. You need to get sails separately anyway (unless you are making them?).
Be patient, I am sure they will restock!