I would load all the numbers in excel and calculate what I might get. But I wouldn't send more than 1/4 of the funds I have. And I think the 12/28 is a scam anyway, especially I liked the roadmap image displaying step 5 as implementing "Ethereum smart contracts". 
Ethereum smart contracts are just a way for ETH miners to make profit and are little more than bean counters
that charge gas down to the byte level for storing any data you like on a block-chain.
My guess is that it's just a placeholder in the map for Segwit hosting services that can be mass deployed to servers/miners
so they can perform some productive work instead of whats happening now where BTC miners rev up the engine without
putting the car in gear and call it PoW because they have no real productive work to do.
I have some ETH and can send small amounts in seconds without paying $25-$55 to miners and have done
lots of research instead of being a slot machine boy and did manage to find just the ICO i was looking for but
it had already sold out (Get a load of this) in 22 seconds so lets not fight over the left over bones that the
bankers throw us from time to time