Still looking for a spare tire

We still haven't been able to find a wheel/tire combination to fit down into the spare tire well of Aaron's Dart Sport. We have the fiberboard tire cover and trunk mat, and want them to lie flat.

He has 235-60 R15 in back and 205-60 R15 in front. By my calculations, the back is 26.10" tall and the front is 24.69". The spare needs to have close to the same overall height, a thinner profile to fit into the shallow well, and have 5 on 4.5" LBP.

Any ideas?
Jerry