That 82 base is just the ticket for the longer scopes. Thing is not to many people use a long scope!!
Personally, I like to keep the scope as close to the barrel as possible. But that set up look like its working well for you and overall looks great.
You are right to move it back a bit if you feel like your crowding the scope. Ergonomics are important for safe accurate shooting. If you don't, I fear even with the extra eye relief its a recipe for eyebrow scope ring!!
Good luck,
CW