I swear I sent them an email asking about 5x4 pattern and they said no, they don't make them. Very interesting, using up stock? I would rather 15x8 or larger, but hmmmmm. Then to make nice new polished rims brushed and old looking....
Is your car mini tubbed or the wheel openings trimmed? 15x7's is about as wide as you can go without modifications. Probably 15x10 with a mini tub and the right size tire.