Web joists in preformed concrete can be complicated, so engineered steel would be the answer... a hybrid. Clerestory windows and a lighter roof structure as I suggested earlier.
Check with the pre-formed contractors in your market, you might find one capable of doing exactly what you want.
Concrete is cheaper for larger structures, steel is cheaper under 5000 sf. With a slab, expect $20-30 per foot (or less, depends on location) for engineered concrete.
In some markets there are contractors that pre-form at a factory, while others cast on site )again, depending on size and location).
In the long run, tilt wall is less expensive. A quick search provided some useful info that should answer your questions: https://tiltwall.ca/blog/pre-enginee...-construction/
BTW, I'm not in the business. A lifetime ago my design career involved a LOT of interesting projects, and as a student of architecture it's the kind of stuff I retain.
... which is otherwise useless information