One other thing, if you like the area, and don't want offsite, check into renting points and staying at Old Key West. You park your car right outside the buildings! And if you need to be near the bus stop there are 3 (iirc) so more opportunities to be near it.
You should also check out the 'We love Bonnet Creek' and see what you can afford in the way of offsite that is really close to Pop Century.