Active job

Replacing 3 Louvre Windows

We have 3 louvre windows we are wanting to replace with solid glass. At present no specific time frame just trying to get an idea for what we are in for. 1st is in our entrance way 810h by 930w. Other two are in bathroom 810h by 900w and 540h by 500w. These are all wooden windows. Bathroom bigger window would need to be frosted/not see through