Yeah it looks like the custom footprint came out backwards. My boards were held up due to a four layer board that was in the same order, but they finally arrived. I was able to put one together by bending the pins, and it does appear to work.
View attachment 38918
I'll have to correct the footprint for the connector as well as make changes for compatibility for some newer PROMs.
I'll see if I can find one that fits. The ones I have are too tall compared to the SMD counterparts, so the case would no longer fit if used.