I have the middle and bottom wheel. Dimensions and offsets are listed. I used 215/65/15 front tires and 255/60/15 rears. Could probably squeeze 275/60/15 in the back but preferred the more balanced look that I went with.
Not sure what the difference is appearance wise between the 08/61 and the 61c series is, but I can tell you my rears (08/61) take the special cragar shank style lug nuts and the newer 61C series appear to take a standard acorn. I think the 61C rears weren’t available when mine were done up. Therefore I have acorn lugs on the front and shank on the rear. I would have preferred all acorn.
If you use the 08/61 style wheel and require shank style lug nuts you MUST us the Cragar specific ones designed for small bolt pattern wheels. The shank diameter is smaller. I have two bags of each unused for sale. Sometimes they aren’t available through Cragar. I think part number 09004 and 09005 is what you need (09004 being left hand thread if you need them)