Weevils & silverfish, 20 supplies/deployment with repairs taking 4 days. Mantis is !30! & 5 days. For comparison most frigates are 5-15, destroyers 15-25, cruisers 60-80
you're confusing the Combat Readiness deployment cost with the supply deployment cost. the CR DP cost reduces the ship's current CR by the shown percentage, so a higher cost means the ship can fight fewer battles before running into malfunction issues. how many supplies it costs to recover that percentage of CR is an independent value, even though a related one.
that said, many of BRDY's ships are still on the expensive side in supply costs as well, just not by a large amount -- aside from Desdinova, Imaginos, and Morpheus. these 3 are much more expensive because they are also much more powerful than most ships of their size class, similar to vanilla Hyperion.
as for why there isn't much talk going on in this thread lately, i imagine it's because 1) the mod hasn't had any updates or news in a while, and 2) most people who feel like chatting about custom ship loadouts, balance, etc do so in the
discord chat, where they usually get a quick response to whatever they wanna share or ask.