B200 Jubilee for DJ 1601?

[dkazaz]

I saw this auction for a really nice looking jubilee band (old style).
It looks like a B200 band.

Link is here:

I really like the clasp design and I was thinking of fitting it on my Datejust 1601 (1968).

I have 3 questions which I hope one of you rolex experts can answer:

1) Does this look authentic? Is there a terrible risk of getting a fake? The seller has good feedback but that can be manipulated. Some advice would be appreciated.

2) If the band is real, is the price more or less acceptable or is it a rip-off? It seems just under half that of a new one.

3) Would this look out of place on my '68 DJ? I mean was it originally fitted to models from that approximate period, or is it much later? I don't want the watch to look like Frankenstein

Thank you for any advice!