Aftermarket 17" Wheels for a 1969 Valiant

A few months ago, I asked about wheels for my car and one of you recommended this site:

http://www.coyswheel.com/coys.html

I'm looking at the 17 x 8 rims and want to confirm the correct stud pattern and backspacing before ordering them. My car is a 100% stock Valiant Signet with a 225 slant, auto trans and the original drum brake setup. I will be using 245/45/R17 tires. I do not want to make any changes to the car itself and do not want to use any spacers, etc...What is the correct stud pattern, and what backspacing should I use to make this all work without any rubbing? Thanks for any replies.