Is it possible to set up a merchant services account with someone other than square for the sole purpose of draining gebits?

Based on my research payline or dharma charge $10/month and would probably cost ~1.1% (.2% + .08, plus interchange which should be .8% + .15, as best as I can tell?). I would gladly be willing to pay this premium to not have to deal with money orders, at least for the foreseeable future. But I also have not seen anyone discussing this as an option, so I wonder if there is some flaw in my reasoning or knowledge.

FWIW I've started MSing in the past few months to the tune of about 30k, and plan to go for ~75k this year, possibly as much as 150k. I'm not sure if my sole kroger can bear the weight of all these $200 MCGCs.