[Darkness]

Hi.
I’d support an M900 as the bike to get, though I am a tad biassed towards them.
The youngest of them are now about twenty years old, so condition is more important than mileage. Look for service history and evidence it’s been looked after. Alternatively find a rough one at lower cost and make it right so you know what’s been done.
They like to be ridden regularly, and don’t run well on stale petrol.
Servicing can be done by an enthusiastic owner, including the Cam belts which are a triennial replacement. Once you’ve found “the one” check out the charging circuit as blown reg/rectifiers often manifest as a boiled battery. The evidence of that is discolouration of the nearside frame and engine paint.