Great suggestions. Thanks guys.
I think I will try to pull a set apart and add a simple brass bolster. I really like the MTH detail and can't beat the price for a ready-to-wire 2 rail set.
For the money I think they're the closest match for the CNW 400 lightweight cars. I just need to center and lower the kingpin point for my Wichman car kits.
I'll see how it works out and post the results. Thanks again!