Student or Learner
They can support the wireless infrastructure, repairs and other costs that accompany a switch to such a tech-heavy approach.
Is "tech-heavy" naturally written here?
I cannot find it in any dictionary? Should I change it with "high-tech"?
Using "high-tech" would infer that very recent or advanced technology is involved. This may or may not be appropriate here. In either case, you would be changing the meaning of the sentence. The two terms are not interchangeable.