I'm actually not having any troubles finding ones with lower mileage. This was one that I was looking at actually.

Chrysler : Crossfire | eBay

I've found quite a few that have had decently lower miles and most of them are going for under $20k used.

Some things that I read was that this car is a pain to do maintenance on is that true? I read that just to get to the oil filter you have to remove a plate/cover to get to it? I don't mind paying for 3 extra quarts than what I normally pay for but typically like to do my own oil changes.

What about tires? Are they a unique size/width and do they cost more to replace?