Daniel Vu

Hi guys i just make a purchase of Gle 350 4matic 2018 for my vacation trip throughout United. so exciting )
My questions:

im looking to buy a amg rim 21 inches, will this fit well for this car? want to go for 22inches but worry it too big, official Mercedes have largest 21 inches on new model. which source can i find this? ebay relible? or anyone here got spare for sale?
how about tires offset ?

2. the car i bought doesnt have wifi, is this an option i can activate through Mercedes dealer? i bought from Vroom!

3. It doesnt have remote start engine, will this be an option to add on too? night package is option to add too?

4. the aluminum front pumper (silver) i wanna black it out what option do i have?

Appreciate input!