use some steel wool to take the rest off get some 00 fine stell wool polish it smoothe and then get a polishing kit that you can attach to your drill from sears. polish them finishing it off with some blue magic aluminum polis and see how nice they look
II have 83 ZX 6 spoke wheels on my 260z.The clear was in sorry shape.I considered simply steel wooling them down but then they may require frequent polishings. Instead I sandblasted them,applied an etch coat,and had them painted a metallic alluminum color...Similar to how many new car wheels are done now.They look fantastic! They are easy to keep clean too.
POR products has a kit called Wheel Restoration Kit. It includes stripper, cleaner and polishing compounds as whell as the buffing wheels and goblets. At $129 seems a bit steep until you try to get the items individually.
Taking a clue from this, get some Aircraft Stripper, apply, get rid of the clear coat, then clean / polish the wheels as best as possible and then clear coat with your choice of a chip and impact resistant finish.
POR also sells a clear POR-15, although I don't know how well it would work for this. You might give them a call though and ask.