Congratulations wowzers! That sounds great - and I'm feeling the same way about the hypothetical situation in which I get the one I'm just applying for now (will have interview fairly soon if shortlisted so hopefully not too long to wait to hear). It's a project I'd really like to do but at the same time lots of unknowns.
Hope you're planning to celebrate somehow - it must be a good feeling to know what you'll be doing; if you're anything like me the uncertainty can be quite stressful.