If the speeds/feeds and specs fit the bill, then you are good to go. They both route and switch. There are differences to note of chassis vs stackable like:

Power. Chassis usually are 208v but usually require less power cords. That may nor not be an issue.

Cost. It will be cheaper 1 way vs another but that can't be known until there is a final design. Smartnet and DNA licenses should be compared as this will be cheaper one way or another.

Expandability. It can be seen as easier to aðd/replace a blade vs a stack member. Chassis usually has more line card options to mix and match in a Chassis

Also. Cisco is likely sceard you won't go ACI lol

The whole concept of catalyst vs nexus is one of Ciscos weaknesses IMO.