those are way to big for a 67, and they're the wrong bolt pattern. FORD bolt pattern is 5x4-1/2, not 5x4-3/4 like listed (those are GM pattern). I think 15x8 is max rim width, look for a 15x7 with 4-1/2 to 4-3/4 back spacing.
Beware of those stock car wheels. Many of them are designed to bend easily in an accident. Therefore, saving the rest of your suspension components. Obviously, your Cougar won't be subjected to the abuse that a stock car does. But a bump on a curb or a decent sized pot hole could finish one of them off pretty quickly.
Probably not the answer you're looking for but some advice I felt I should share from my days on the pit crew.
try going to a JY n see what they may have. Sometimes they pull a set off of a car before they put a body shell in the yard.I have picked a up a set once for 75.00 for all 4 but they did need tires but the rim size was ok.Check your local papers /swapper. Theres usually good findings there. A nice set of american racing chrome nuggett wheels would be cheap but spruce the appearance a bit .I put a set of them on my old 83 cougar i had n it brought the white out alot.
Hope this helps out some.