I considered contributing, but after doing some due diligence, decided against it.
Moolah.io already have a bitpay style processing service available for maxcoin and have first mover advantage in that market.
If the developer provided genuine reasons s/he needs £2500 of funding, I would be more willing to help.
Plus there are no reward tiers whatsoever. I'd want some kind of incentive to support this, preferably a return on my investment.