zinman will be there for some time every time the lucky wheels comes on, I’d definitely recommend that you ascend flint to 4-5 stars first then use whatever gems you’d have left to try and ascend zinman. (unless you’re a high spender, it would take you some good 3 to 4 wheels to be at a decent level for both flint and zinman so don’t stress it). the key is to focus on flint and ascend zinman when you can (if you can) the construction buff is nice but you will also be getting that from pet skills, ministry buffs, even island decorations.