It's a waste of time to play Daggerfall in any way other than Daggerfall Unity. That's the only way you're going to get the best Daggerfall experience possible.

Your requirements can be met by a good decade or so of laptops, so there will be plenty to choose from. IMO it's going to come down to your expectations out of the display (with regard to scaling / stretching).

This long read contains a mountain of research and reviews: The quest for the perfect retro laptop: a saga

I wouldn't bind myself to the Wavjammer. I couldn't make it work with any game that claims to support it. The music(FM) part which is Adlib compatible works, but the digital sound doesn't.
I'd recommend to look for an early pentium laptop that has bult in sound. You still can try the wavjammer on it. But if it doesn't work then you'll still be able to play your games on it.

RetroGamer4Ever wrote on 2023-04-30, 01:28:

It's a waste of time to play Daggerfall in any way other than Daggerfall Unity. That's the only way you're going to get the best Daggerfall experience possible.

I strongly support this opinion. The original is way too buggy - you can soft lock yourself in the main story way too easily. And that's a shame since it's so well written. Quite possibly the very best main story of any Elder Scrolls game ! - and its potential is wasted.

The only Dagerfall experience you should consider in any way is the Unity version. Seriously.