Eh, you can go sloth easy with MA Pan. Their only high-resource units have obscene encumbrance values and the satyr hoplite doesn't even have a proper longspear, just a regular shorty, so you can get by with the low-resource troopers just fine. Revelers are pretty amazing, and only 3 res. The problem would be the white centaurs in the first 2-3 turns, as they've got a whole 12 res they need per each. But outside of that, sloth is fine.
Trading sloth for growth nets you +1% income per scale, as well as extra supplies and popgrowth which will, in the long run, translate into even more income and resources. Plus a couple nice events, but nothing outstanding.
It's perhaps a bit cheesy, but I think Nature is actually a pretty good alternative bless for them. White centaurs have 23 health, which means the +8 from N9 will juuuuust push them into the health class where they regen 4 HP per turn, which is pretty great. An imprisoned Irminsul with F9N9, 3 Turmoil and 6 Dom will have 89 points left over for however else you want to balance your scales. Sloth as mentioned is a nice pick, and a tap into cold will get you 40 more points and the income penalty will neutralize itself in the first summer, when funds tend to be particularly tight.
I was just mucking around a bit and 3Turm2Slot got me 8 dom and 3 luck, and it was a perfect 0 points left to boot. So there're options.
But, again, Pan isn't really the best bless nation out there. You might wanna muck around with Bandar Log a bit, those tiger riders are pretty goddamn scary... And after that, they open up into all sorts of no-upkeep cheap summonable sacreds.