5x4.5 = 5x115mm .. right?

Like a few others here I'm looking for either 16"-17" rims for my 73 dart with big bolt pattern.

I was looking at some aftermarket rims made for a newer Chrysler 300. The bolt pattern is 5x115mm, which converted = 5x4.5inch; right?

The problem with these is the widths are mostly 8". What's the largest width you can fit up front? (I don't mind rolling the fenders slightly).