Whoah, thats a shit ton of coins.
I'd be lucky if i could touch that many coins in my entire lifetime, lmao.
I don't think that Roger will take the offer, because personally I believe that bitcoin core will outvalue bitcoin unlimited after the hard fork. Simply because there are more nodes for BTC than BTU currently, however it could change.
Right now on Bitfinex there are BTU futures available. However they are only worth 0.25 right now.
Would be interesting to see what Roger comes up with.