Hey, I'm very interested in Lolly :3
I do actually have Chevre - but she's my tenth villager (and the only one in that town I'm currently able to move out) so depending on how many you have I might not actually be able to give you her and get Lolly from you as well.
If that wouldn't work out, I also have bells I can offer you
edit~ she's actually not my tenth! I thought she was. So I'd be good to give her to you and get Lolly the same day