I think you should first contact a lot of ICOs about becoming a marketer...

waht you want is unique,  you know? You want them to hire u officially as a marketer and you want ot invest.

It's easy to invest your 20k, but it's hard to get hired as an official marketer lol. (Unless you're talking aobut sig campaigns and bounties).

I would first land the marketing gig, then invest