Wouldn't this be -EV for you? Your house edge is 0.1% to 1%, and offering 1.5% income means an estimated 0.5% loss for each bet. I fail to see how a larger bankroll at the cost of negative expected profit is a good deal for you. Even at a 0.1% share, some bets (1.01x) are negative EV for you.

I think you'd be better off looking for Litecoin investors to just invest in the bankroll directly, kinda like what bustabit is now doing.