The Blue color is very desirable in top condition with only very minor scrapes and no fading. A clean chaingaurd with near perfect original screen is definately a plus. Two speed with front brake and original clean wheels, pedals, sissy bar, seat and handle bars would make this a very desirable 67. If you could buy it for$450- $500 a crazy good buy and $600 that would be super, but at $700 or $750 still a good find for a top condition early Stingray Deluxe two speed with front brake in a great color. It is not really very easy to find nice original ones. If you had to replace components you lose originality and can spend a lot more, but a super nice original will always be hard to find and are really nice to own and admire. Looks to be a nice one and purchase decision probably depends on available hobby cash in hand. For me I love the two speeds and also the 3 speed sticks shifts and consider great original paint (lime, violet, sky blue, coppertone) and great original components as my top picks for Stingrays. I think it's best to buy bikes you really love and can afford and spending a little extra for the best around has it's rewards. Also the front caliper brake on J-39 was available on Deluxe models in 1965:
Deluxe Sting-ray
•A great new fun bike with a handsome array of equipment. New streamlined deluxe Sting-ray saddle, nylon studded whitewall rear tire, Sting-Ray handlebars, chrome plated fenders, extra large rear reflector. Flamboyant Lime, Radiant Coppertone, Sky blue or violet.
•J39 Deluxe Sting-Ray, coaster brake..........$56.95
•J39 Deluxe Sting-Ray, 3-speed................$56.95
•J39 Deluxe Sting-Ray, 2-speed coaster brake with front caliper brake..$56.95
My original lime 65 deluxe has the 2speed overdrive and front caliper brake .