Air box also missing . Looking for replacement.
stock air box tends to be pricey. You can try in the buy/sell forum here.
What size jet do I get for aftermarket Air filter?
My Iowa came with an 85 main jet. Check your current jet size. If 85, it should be more than enough for any aftermarket air filter you add as Honda seemed to overcompensate on the main jet for the regular Urban and even moreso for the Iowa edition. The rear fender mount will get in your way for almost any aftermarket air filter. You'll need an extension with 25mm inner diameter to get an aftermarket air filter up and over that rear fender mount.
Also didn't come with oil tank so I plan to premix after plugging oil pump and capping off the original carb.
I've had 4 Urbans and every oil tank leaked. Press your luck or pass.
Also wanted to bypass choke.
You'd have to get a carb with a manual choke or else starting your bike with stock carb and no choke would be fun.
And im looking for replacement wheels (rims and all).
These tend to be expensive on eBay. You can try here in buy/sell forum.