My pleasure :D

And actually I'd like to add, concerning your plans in the OP:

when you leave a dust vote, it will follow you and upvote the vote you left, to above the dust threshold, so you and the person you upvoted on a comment, both get a return after 7 days

this is actually exactly what the bunny will do, while dustsweeper on the other hand only works on an account's incoming dust (which the bunny will also do, too)

The bunny has some quota limits and aims to give a fair distribution of dust support to it's members, but naturally it cannot server everything for everyone all the time. Dustsweeper has a limit of 2 dust-upvotes per user per day.

My general recommendation for ideal "dustproofing" is to run both options at the same time. They complement each other quite well!