Maintence Reminder Sotware

Hoping someone here might be able to help me. I own a business and I'm hoping to create a software that can do three main things:

1. Let me input all the machinery in my factory and designate whether it's in good shape or bad shape

2. Have it send me reminders to maintence said equipment on certain time intervals.

3. Let me input that the machinery has been maintanced and restart the clock

Would this be expensive to create? Any idea of a ballpark cost? Thank you very much in advance.