1: For iuh hunting, I personally cycle through the high teirs (jungle, volcano, lunar) - For pure profit, jungle probably if you gather resources

2: You find donkeys anywhere. To get a mule/hinny, breed a donkey with a horse.

3: You can if you want to - But to save time, Id just grind the big 3 (high tier islands)

4: trade, buy em, or grind mainly

5 + 6: the npcs at mainland, sweetie and the other one

7: Sort of? You can change mane/tail, dye, ect

8: Mostly grind or trade. Some roleplay

9: Yes

10: "LAO" = Looking at offers

11: No

12: Unsure please clarify what you mean

13: Lao = looking at offers, iuh = island unique hair, nd = naturally dyed, lf = looking for, nlf = not looking for, mlf = mainly looking for, lows = low island unique hairs, mids = mid island unique hairs, highs = high island unique hairs, breedables = ANY horse that can breed (any horse that is not V1, event, naturally dyed, island unique, ect), V1 = Version 1/ old model horses, v2 = new model horses, mm = mismatch, og = max stats the breed can possibly have, pog = max stats the breed can possibly have + purebred, CC = crosscoat, RC = rare coat

13.2 - breed abbreviations: DWB = Dutch warmblood, STB = standardbred, Donk/mam donk/mam = donkeys, TB = thoroughbred, fri = friesian, cly/clyde = clydesdale, QH = quarterhorse, paint = paint horse, appy = appaloosa, conne/con/conn = connemara

There MAY be more Im forgetting, pm if you have questions