I got a level 2 stable with help from another player, I looked at what I needed to upgrade again & immediately started working on it, I have everything but the correct pet even though I've bred between 6 and 10, maybe more, pets trying to get a pet with construction stats, there are no pets for sale with the needed stats & I've checked almost daily for 1. So how about make a construction firm of say white unicorns, I'm not sure if any buildables are species specific or not but have pets of the needed species/stats in the most common colors or have them be non-breedable & maybe put a time limit of 6 hours on their rental or something, or have the renter fill out a simple form on how long they need the pet & how many buildings they want to use it for. I know as soon as I get back up to 10,000 coins I'm going to want to build my stable & get on to the next level. Since I can't breed 1 or buy 1 I'm going to have to try to set up a temp trade & borrow a pet with the needed stats to be returned in slightly over 4 hours.

You know you could just level any pet while specializing in those stats, and as long as they don't have bad genes making those stats red, they will eventually hit the stats you need to build whatever building it is you're trying to build, right?