Orville
Hi, Agree with lists already provided - available as a download
here .
In terms of electronics we'd like to see a GPS unit of some description on board plus a depth sounder. Nav lights, lifejacket lights, spotlights etc are key too.
Regarding schools in Bristol then i don't personally know any but those that are there will be on the RYA website. We'd happily train on your boat in Bristol as one of my Instructors lives there, equally there is nothing to stop you trailing your boat somewhere like Poole or the Solent and training there - which can sometimes be better as it isn't quite as tide affected as somewhere like Bristol so gives greater flexibility for the course in respect of timings. Either will work well for you though.
Good luck & feel free to throw in further questions
Regards
Paul