About training:
I do about 10-30 km/day year round, so i should be in good enough condition already. I'll try to do a few 100-150 km trips to make sure everything is ok. Longer trips might not be a good idea, because they might cause damage. I'll try to take it easy during last weeks before VR, to make sure my knees are in as good shape as possible.
Dick:
Starting recumbent training so late sounds like you might get some kind of pain at least during VR. But if you are a fast upright bike rider already, maybe it will be easier to adapt. In the first few months with a recumbent my feet felt weak, because somehow the required muscle balance is different in a recumbent.