Depending on what you are going to do with the Fitness Data and what country you are planning to sell it into you also need a CTO that
And to find this in 2 weeks isn't going to happen. Much less for $60k.
You said you and your students don't have the skills. MOST startups lack the formal skills to do everything they need to do. Given your $60k budget - it seems to me that you guys need to run this yourselves and learn by doing (and yes that includes periodically failing)
Frankly if all you are doing is Fitness Related, you have a tough time ahead of you in terms of getting into something like YCombinator. The world is full of FitBits and Endomondo/Map My Workout type apps.
And if you are looking to do dataanalytics that does any sort of HEALTH predictive work, you are under US Law - A MEDICAL DEVICE with all of the regulatory stuff that goes with it. (go look at the free mHealth Checklist we have on our site to see what this means https://ClearRoadmap.com ).
You are in the classic startup problem - not enough cash and skills to do what you want to do if you follow traditional pathways. OK so if you have $60k, do what you can with the skills you have. and either succeed on sheer determination and hard work, or fail trying
but you will not get what you are trying to do on the budget and time you have