Wilwood conversion problem

I got the 12.19 big disc kit from Wilwood for my Dart. Since the original 14 inch wheels (bbp) don't fit, I checked around for new wheels that would fit the hub, match the bolt pattern and also, since I'm plus sizing my tires from 14 to 15 inches, that keep the same tire height to avoid messing with the transmission's speedometer gear.

So, original size E70-14... converted to 195/75R14 for today's measurements. Tire height is 25.5 inches.
Plus sizing to 15 inches, I'm getting 205/65R15... still 25.5 inches high.

My original wheels are 6 inches wide, the 15's I've found are available in 7 and 8 inch wide. So I chose 7 inches.

The wheels are "Bassett D-Hole DOT Legal" 15x7. They're "racing steel wheels", lug centric (as the wilwood hub can't accomodate hub centric wheels since it's a curved cone) and they require 45 degrees lug nuts.

The Tires I chose are BFG Advantage T/A Sport (205/65/R15 94T 660-A-A).

For that same size, here are some other tires I would also have chosen:
- Continental Contiprocontact (205/65/R15 95T 540-A-A)
- Michelin Premier A/S (205/65/R15 94H 640-A-A)