Most swingers don't pay too much attention to physical appeareance or at least not 100% for choosing their partners, some do of course and you have to respect that, I think everyone has been rejected once (at least) for someone that wants playboy material, but the important thing is that you like yourselves, go out, dress as sexy as you want, and your opinion will change when you receive the first ad, or the first insinuation from other couple or people.
There's physical attraction in most swingers situations, but it's not a contest where someone is ready to count your flaws and asks for perfection.
Enjoy yourselves and I'm sure you'll find someone else that will do the same, loosen up a little, you'll be quite fine
Hugs
