HO F40PH Stirrup Steps

I would like know which HO WIRE stirrup steps would work on a HO Bachmann F40PH locomotive shell. I removed the original PLASTIC stirrup steps that were attached to the Bachmann F40PH shell since they are too thick and now interfere with the power trucks on HO PPW-Aline F40PH chassis. I recently repowered my HO Bachmann Amtrak F40PH with PPW-Aline and Athearn HO locomotive parts.

David Briel An Amtrak Fan