that is a absolutely jaw dropping beautiful Camaro. and welcome to the forum.
im not sure what shipping charges are from the USA to the UK. but most maintance items are not to much for these cars. oil changes are strait forward and pretty easy on the pocket. same with brake pads and other things.
there is plenty of DIY posts and a lot of in depth information all over the forum here
the car journal posts and sponsor builds are amazing to look at as well.