Unfortunately, I think Towny conflicts too harshly with PEX, so I've disabled it for now.
I think it's too drastic to switch and rewrite to a different permissions/group manager, especially for a single plugin.
I'd be willing to take on staff members if they're committed, but from what I've seen, people want a nice rank and I don't see them again after a couple days. I'm definitely not willing to assign any Admin.
I've added you on skype, let me know your qualifications on there and I'll see about a staff position.