I couldn't find a crimper for their pins under $200I'm a big fan of the Tyco CPC connectors. I've got them in a few places on the truck, ham radio equipment, etc. They are designed to be mechanically robust, for repeated mate cycles and staying sealed. I'd think the 1/4 turn bayonet style Miniature CPC would be perfect for a situation like this.
https://www.te.com/usa-en/products/connectors/intersection/circular-plastic-connectors.html
While knockoffs for the Deutsch DT pins are easily found for ~$40
If you could link to a decent substitute, I'd like to give them a try, the DTs don't go past 12-way at higher amps.