First off - you don't need rangers for Promys; in fact, summoners and/or black mages make better DDs, as they aren't stuck at relatively close range (which hurts ranger damage now).
Second - you'll want to farm up the animas to make things easier. Each person will need either 4k or 6k (depends on whether or not you plan on using Terroanimas; with a BST-heavy setup, I'd think not).
Third - My recommendation for the jug pet to use here: Grasshopper Broth, which gives you an Antlion. People have commented (cf. the
Tracer Antlion) that Antlions make great pets and have a nasty poison skill, along with a skill similar to beetles' Power Attack in damage. Since jug beetles aren't available until 38, this makes Grasshopper Broth your friend (heh) for Promys. Since you have capped Cooking, you *may* have issues with producing Noisy Grasshopper Broth instead (the HQ, which isn't going to help here, but it'd be nice to have anyway for later things), as Grasshopper Broth caps at 51. (Maybe you know someone who's in the mid-40s on Cooking and doesn't want to make Orange Au Lait or pie. I dunno.)
Fourth - PT makeup should probably be 3x bst/war, 1x nin/war, 1x whm/whatever, 1x blm/whm for best results (assuming all three BSTs have liberal amounts of Grasshopper Broth for use here). If the antlion pets end up stealing hate from the ninja, you can swap him out for another BST on successive runs. :->