If you swing by my house you can take any of mine if that helps, would be criminal not to get a bit of riding in, indeed could bring over a bike and go for a ride myself if family allows you to.
Also - try get hold of a roadbike - the island loop, approx 60 miles, is well worth it on a nice day. I'm sure we can sort you out (you're kinda tall ain't ya?)
Not sure how much time I'll be allowed on a bike, but given the Dad in other family we're going with is quite keen too it should be a goer for at least one if not 2 days (I would hope)
Was over there this weekend lied about the length of the camper got a return for £67 as I told them it was 5mtrs and not the 5.71 it is or it would have went up to £97 Still great weather got a sun tan and jelous of the peeps on their bikes.
Tip if you can put the bikes on the roof or inside the vehicle as CalMac will charge extra for the bike rack.
There's also a upgraded walking path from a wooded carpark to the kings cave which would be good for a wee session about 2Km each way but some nice slopes and jumps