I agree the DIP one piece bases have gotten great reviews and you can get them in 20MOA or 25MOA to make longer shots easier on your scope.
For rings it depends on your gun and what range you shoot at. The Burris sig Vee rings also allow you to add MOA to your scope and mount it stress free. If your shooting at short ranges, say 100 yards or less then you have no need to worry about any MOA changes and can just find what ever ring clears your scope in a price you like.
My scope is 44mm objective and to mount it on the stock bases i needed extra high weaver rings.