Last time I looked, the Millett Angle-Loc...
10/22 base was $3.99 at MidSouth. Here's a basic 10/22 setup, all available from MidSouth:
Millett Angle-Loc 10/22 base $ 3.99
Burris Signature Zee Rings 27.55
Burris Pos-Align Offset Insert Kit 8.89
Total $ 40.43
Advantages: no base shimming, no ring lapping, no ring marks on scope. You can spend the extra time doing other fun stuff. AND, since the rings aren't lapped for a specific rifle/base/scope/distance combination, the rings and inserts can easily be removed and used over and over again on any other Weaver based rifle/scope/distance combo. Oh, also, the Millett base is sturdier and slightly taller than the Weaver T0-9. If you still need more clearance for a large objective bell, you can get a higher ring and/or go to a thicker/higher Power Custom base (about $15.)
Disadvantages: It costs a few bucks more do do it right the first time.
