Welcome to the forums Nice introductory post, helps get the cogs turning right off the bat and there are no stupid questions, I like you already haha. First and foremost, UKARA is just for buying guns from retailers, it isn't a legal requirement, there's nothing written in law about it, and when carrying out private sales it isn't required (though some people will still ask for it). There are countless - Literally, I'd rather shoot myself than try and count them - topics in the law section that will include everything you'd ever want to know about the legal side of things. I imagine your Classic Army rifle is more or less the same internally as their newer iterations, there haven't been a lot of hugely technological advances in terms of bog standard version 2 gearbox tech, the gun ought to be perfectly fine running 7.4v LiPos, just steer clear of 11.1s unless you've inspected the internals and made sure they can take it. MOSFETs are generally advised for the sake of the trigger contacts when using 11.1s too. If your gun works though, there's no reason not to field it. When looking for a shiny new pewpew it helps us narrow it down if you give us a budget and some search parameters, style of gun, intended use (CQB/woodland/etc). G&G are generally the go-to manufacturer, if G&G make something that suits your requirements, it will likely be the most cost effective option with regard to cost for performance in relation to the other options on the market. G&G are epic. As for finding sites, have a look on Google for the Airbana airsoft map, Facebook can be a good resource too, or you could ask the players at the two sites you mentioned, they're bound to play in numerous other sites around the same area. There'll probably be someone on here who lives in your area who will know about other local sites too. I think I've covered everything... If you need any help navigating the forums then drop one of the mods a PM, we're all listed here: Meet the mods.