Is there any other brand jacks that have the same pcb footprint? If so you could solder a different one on. I agree this is a real bummer. I bought XLR to RCA cables and I just use the XLR on the Directstream and the RCA end on my amp. Not ideal but little choice.
Should be a better option than 750 return to base!
As an alternative, take the nice rca cable you just bought, chop one end, and put XLRs on. That is def what I would do.