I have never mounted a scope on a gun before, always bought locally then had bass pro pic out rings, base and mount. This time, i jumped on a scope online and wonder if you can suggest tools and tips to mount, which may simply be to take it to bass pro and pay to have bore sight, mounted, etc. but i wouldnt mind tackling myself

Also, replacing existing 40mm scope and med rings with one that is also 40mm but the new scope is 1 inch vs old being 30mm. Can i keep the base but will need new rings? Do the brands need to be compatible between base and rings?

I bet bass pro might mount scope for free as long as im buying rings from them but havent asked. Is that my best route?