I know my answer, and I'm aware you can find themes for like $20.The landing page is a single page thing, jump links on the page, then a form to collect an email.With regard to responsive design, cross browser stuff being a given/addressed... $30K?Point of this is I'm trying to see if there is any reason to think this is reasonable.Hosting/certs is a minor concern could be done by you or provider. No changes to the site after it's done.I would also add that you're a startup/don't have cash flow, maybe some kind of investment/seed money.