Thank you every one for your comments...if someone want make an offer please reach in private, it will be listed maybe in a second time.

For what I can understand, Of course this is not a "pure bonus" but there are no limit for cashout this amount (it's still a big bonus... It can be cashed out also in small chunks)
Well, in any case the player could play also 1.01 odd ... its not a 0 win since he has the chance to opt in for a very low odd.