I'm worried that this is going to sound flippant (not my intention), but use Heroku. You're under significant time constraints with being a solo founder and it would most likely be a win to just not have to worry about this one technical aspect.
Nothing wrong with staying that at all. It is easier to get started with. We should try to create some AMI images to make it a little easier to get up and running at AWS with Postgres-XL.