This should provide some interesting daytrips! Or are you moving away from Aberdeen?
There's plenty of places with Marilyn lists, but the hills of Graham height aren't usually separated out. I'd look in Scottish Hills. I did an index for the Welsh hills forum (
here), where the main list comprises of hills over 2000ft. All the ones which are Marilyns are highlighted in red. There are obviously a few Welsh Corbetts and Munros to filter out, but only a handful.
Vuirich did the same for the English hills
here with added grid references. I really need to go back and add grid references to the Welsh one.
This site is quite useful too:
http://www.haroldstreet.org.uk/waypoints/It may be possible to set up the options on there to only show Marilyns between 2000 and 2500 ft. I haven't managed it yet, but not for want of trying.