Here in Australia there are STACKS of those louvred type windows, and they can very greatly in condition. I usually charge very very high whenever these are concerned, especially when they are more than 1/4 of the overall glass in a building. Honestly, I don’t have a per pane price, it simply comes down to their condition.
One of those bays would take me 10-15 mins max, so I’d charge no lower than $50 AUD per bay, I suppose.
This would be a job where I’d pull out the sales skills and build it up so it seems really difficult and time consuming to get right. I’d get my tricket washer and squeegee out and test the louvred windows too. And then I agree with the above guys - charge a lot and be prepared for it to take much longer than normal. If you don’t win the job, dont worry. She’ll get someone cheaper and they’ll get the shits coz its hard and they’ll do a crappy job, then she’ll call you later on.