I was just noting davidw's point on the speakers, the network. If U. Edinburgh can get speakers over from the valley on a semi-regular basis this isn't
that big a problem. Yet again, London's better because the number of cool intersting people passing through will be orders of magnitude higher so you can piggy-back off of that, more and better speaker opportunities.
But your point is well taken, meetups are not a big problem, and the lack of them is relatively easy to overcome.
A proper YC clone probably requires
(a)Angels, plural, successful ones, with personal experience of startups
(b)20-50K per round, so assuming 2 rounds a year, and three years to get some form so others will back you thereafter, ~120K min.
I think that's it, and if you're lucky you could get away with less. Here, government might be useful. 60K isn't chickenfeed but it is doable in grant aid. If you could find someone willing to pony up 60K, you could get matching funds from a local authority somewhere in the UK, or from one of the enterprise incubators.