Next step? Wheels!

[Fantastic Z]

Sup people!
I've got a situation concerning wheel options I'd like to share with you all. I'd like some input/advice on what seems like the smarter move for both now and long term. I bought a base touring Z and right from the start I knew I wanted to convert it to a Touring Sport (nothing available or feasible at time of purchase). I have done everything I need to make it a T/S EXCEPT for the wheels.

I've msg'd members and vendors getting quotes and ideas on wheel options and choices to see what's out there. Long term my Z will see boost (2-3yrs out) For now it will remain somewhat stock other than what's in my SIG and I have NO plans to lower my Z and my new job has me parking downtown in a garage that isn't low car friendly. My question is. Should I just pick up the OEM 19s, complete my conversion and sell my 18s to recoup loses or do I go aftermarket NOW and see what suits me and the Z for when boost comes?