I had a look online, the GT is a good bike but I prefer the paint scheme of the Mongoose, it's also a bit far to go to get a bike even meeting half way, and what if it was then the wrong size or not what I expected?
So this morning I found a different local cycle shop that actually had the Mongoose in stock and got to try then out for size, good thing I did as both I and the store initially thought I needed a large, but a medium was the right size.
They didn't have the medium in that model in store (I tried a lesser one, but same frame design) so they're brining me (the last) one over from their warehouse. I'll fetch it tomorrow or probably Friday.
Happy days, bought some mud guards, lights, puncture repair kit etc and so I'll be good to go. They'll fit everything and set it all up plus I get a free first service. Well worth the extra tenner they want over the other place (which doesn't have a medium in any case).
What swung it for me was how helpful and friendly the staff were, which is a stark contrast to the other 3 places I'd been so far.
One guy was in is early 20s, the other was an old timer. When I revealed I hadn't ridden for years the question came about as to what bike I had last, I mentioned the Kirk and the old guy's brow furrowed and he said "wasn't that the magnesium one, cast in one piece so no welding?". Yup! He said he remembered those as they looked bloody heavy but were super light. I asked why they didn't make them any more and he said that the standard components (gears and brakes etc) on them weren't very good considering the bike's price, the money was in the frame. And he reconed that today they would be too expensive, probably nearer a grand and more than that if they put decent components on them. Apparentley it's popular with enthusiasts as they buy them used and put their own top quality components on them.
Also saw a new Raleigh BMX that is styled to look as close to the original from the early 80s. Even had black mag wheels (they're made of stronger stuff nowadays although still not as good as proper metal spokes) and it cost £250. Ouch. that's twice what I paid for mine in the day...