rehab coop.. cost to repair ? where to start?

[Tom Server]

Purchasing a rehab co-op unit.  Basically, needs everything new. it's around 850 sq ft in New Jersey.

Where should I start first??  This unit needs a whole new subfloor thru out the unit (3/4in plywood), a floor (FVP), new kitchen (cabinets and counters), and bathroom (Vanity Toilet, tub.   All appliances (washer dryer, refrigerator, dishwasher, stove), paint thru the unit

Do you think it's doable for under 15k for labor, material, appliances?