Hi-
I recently got one of these bikes - seems good (once you get it sorted!), looked at your problem in getting the rear wheel out and would like to offer the following:-
1. put bike on stand to support swinging arm and try removing one of the rear suspension units (or both) this should let the swinging arm raise up past the exhaust and let the bolt be withdrawn.
2. Try setting the adjustment on the lowest setting and weight the seat with a fairly massive person - this might have the desired result!
3. Could you use clamps/spring compressors on the units to the same end?
Hope you have it sorted by now!