A 205/60 is pretty short. It'll work, but doesn't look all that great. A 215/60 is 25 inches in diameter. Which is pretty ideal for the front (25" to 25.5")...
The best thing to do is repost your car photo ( I’ve seen it). I’m more interested in a period correct look. Your car is more of a modern look conversion. Not sure what the OP wants.
"Period Correct" would be 14-inch wheels. The O.P. stated he would like 15s, which is still nothing "modern" today. Obviously he needs to go with the look he likes. I was just offering suggestions based on the various different wheels/tires and sizes I've had on my car...
A 185/75 R14 is 24.9" tall. A 205/60 R 15 is 24.7" tall. You don't get any closer than that to the same diameter. It's a good stop up to a more responsive, more modern looking tire.
My car, in the picture below has 205-60-15s on the front and 265-50-15s out back. I am shooting for a bit taller front tire next time around, 225-60-15 which is 1 inch taller, 25.6. I really like the stance on my car, but I think I need to fill the front wheelwell a bit more.