Solo Ads with No List, No Money?

Hey Warriors,

I want to seriously get into solo ad marketing, by making it my #1 source of super targeted traffic. I have a way to locate people with lists in super targeted niches. These people usually don't know what a solo ad is, so their lists are pretty fresh and filled with potential buyers because most of the time their list owner never tries to sell them anything (or at least they don't try to sell to them that much). I know that i shouldn't say that these lists may be "filed with potential buyers," but for the sake of this post, assume that i have done my homework and that they are. Anyways, i need a method to get these list owners to run my ad copy to their list. Only problem is, i have no targeted lists in their niche to do a solo swap with, and i have no considerable amounts of money i'm willing to invest in these solo ads. Does anyone know of any easy ways to trade a solo ad for something else besides money or an ad swap? What can i give these list owners that will be an equal exchange to the solo ad that their sending for me? Any responses would be greatly appreciated! Thanks.