Are there any 15" BBP steel rims for A-body fronts?

My '72 Dart sleeper now has disc brakes in the front (4.5" big bolt pattern, of course). On the rear I have 15" BBP steel rims widened to 10" with 295-50R15 tires in the minitubs.

The rolling shell came with 14" steel rims and worn-out tires which I now need to replace. 205-70R14 tires are not nearly as common as they used to be...

So I am thinking about going to 15" on the front too. They don't have to be super-wide since I want to run relatively small front tires, but not 3.5" skinnies. I really want to stick to steel rims to maintain the sleeper image...

Does such a rim even exist? Say 5.5 or 6" wide? I checked the classifieds and didn't see any.
thanks
Charles