Frankly you're in London, where there are a lot of bassists, plus it's an easy place to get to for most people (you could have been in Aberdeen), plus you're now talking to the largest online community of bassists in the UK. You've made a good start 👍
Might be an idea to take a few photos and post them here, I'm no expert but there are a lot of very helpful folks on this site who are and will offer good advice
Good luck