Well, that means you are a person of discerning taste and splendid generosity.
What you should do is pledge in for the larger reward, then add the costs of the other rewards you want, allowing at least $6.00 for postage to a US address. (That'll let me ship a priority mail envelope, which will hold all sorts of Cartoziana.)
So, for example, if you want the new version of #1, a set of postcards, and our selection of mini bonus books. Pledge in for the mini books, and make your total contribution $46. (That's $8 + $12 + $20, plus $6 postage.)
If you wanted a complete set of ten Cartozia Tales issues plus the postcards, you could just pledge in for the $66 reward and add $12 to the reward selection (there's another $14 in shipping already attached to the larger reward).
And if you want to double up but you're in Canada or farther away, get in touch with me and I can make an educated guess about shipping costs!