What exactly am I buying

Here goes my best Columbo voice;
Just one more question:

Is that 34ish master 18 inch wheels, or 21 including 30/31?

Did you run stock springs or AD pick up springs?
The ones on mine is rusted solid. And I want something cheap and avalible and AD springs should be more avalible, at least over here.

 

I found that the centre of a wire wheel hubcap from an 80's Chrysler 5th Avenue fit my old Chevy wires (17&18"). They have a kind of cool hex shape in the middle.