Kilmarnock?

[ffutures]

During Eastercon I may want to make a side trip to Kilmarnock, which is about 25 miles from Glasgow. Trouble is that I'm going to Glasgow by train and will be collecting a fairly heavy package from Kilmarnock if this comes off. I also can't drive a car, I only have a motorbike license. So... how easy is it to make this trip by public transport? A simple train ride, or a complicated nightmare? How big a town is Kilmarnock anyway? Is everywhere in affordable taxi range?

Any information would be useful. Or if anyone happens to be driving via Kilmarnock en route to the con and feels like making a pickup for me...

I should stress that this is VERY tentative, and largely dependent on something I want to buy on eBay staying at an affordable price.