Me and some pals went for run to visit the Jim Clark museum at Duns several years back (I was riding a Buell X1 Lightning at the time).
We also visited a derelict race track near by (I forget the name of it but it was in the middle of some farm land). Tempting as it was, it wasn’t in a fit state for riding on!
By the way, passing Annan on the train is the best way. It’s a crap-hole and not worth visiting. Glad I got out when I did!