RE or MG, either would be good. Obviously, you'd need to make fewer compromises with where you'd travel and at what speeds with the MG...or perhaps even with the new RE twin, if you're OK with being an "early adopter guinea pig".
Little danger of that with the likes of me. I'll likely never buy a new vehicle of any sort...Just not my thing. But an early '70s MG of most any type in decent shape would suit me just fine...or frankly its Honda GL500 Silverwing or CX500 emulations of the period too. They seem to be flickable and move smartly enough for my pre-geriatric tastes.
As for you, I think we'd all agree you're well overdue an unalloyed win on the karmic wheel of biking.