Outdoor Readable 16-17" Laptop Recommendation?

Hate to ask this but outside of the normal machines I need. I have a request for a client for a large display laptop that can be seen outside. Looking for highest nit screen however most are coming with a gaming GPU or drafting GPU which we find need. This will be used for light office with (Web browsing, Word, Excel, and Outlook).

Any suggestions? We have a good budget but looking for something that will have battery for most of the day vs GPU overkill