MashaAllah very clean ride. It seems to be FL, and the price you paid is justified in my opinion.
For 14" tiers, @Vitzrulez just gave you the opinion. I m using 185/70 R13, as i didn't have budget to get new rims, or else i'd also had gone for 14". For tires, just be sure not to get over sized. See the post by @Storm on page 112 of this thread.
ZIC A+ is the proper viscosity oil (5W-30); and the condition of oil suggests the change interval itself; depends on the condition of the engine. otherwise, 3000km will be just fine.