1968 Barracuda Rallye Wheels ?

HEY guy i just bought a 68' barracuda NOTCH. been looking for some wheels and tires but I'm completely lost on what i could get and make fit. -

I've been looking for some 15" magnum 500 wheels

but I'm not even sure what bolt pattern i have on the car. i have a spare wheel in the trunk that measures 5x4 1/2 but i was told the bolt pattern for my car is 5x4.

also I'm trying to get some 225/70/15 rear & 205/60/15 front - would that fit good?
would these fit on 15x7 wheels?

could i get the 235/70/15's to fit in the rear with ease?

Also love the wheel and tire set up you have there dgc333 GREAT! Do you have anymore photos?

THANX for the help guys..