Personally, I'd rather see my metal Jandina replaced by another 80th natural metal bird. Cactuskoolers' skins make me drop jaw and drool!
I think Airmess's 38J, though a really old skin, has aged fairly well, more importantly it actually represents a FG involved in the current scenario - so I'd recommend leaving that one in. Or have them pull my 479th FG Swanee Jr - I'm not so pleased with how that one turned out.