When do budget photo lenses become a false economy on set?

Hey everyone,

I'm currently DITing on an indie feature shooting on a V-RAPTOR XL. The DP loves the look of Cooke primes, but our budget simply doesn't allow for a full set. We're looking at using adapted Sigma Art lenses to save money, which I totally get from a production standpoint. We've done some tests, and optically they look pretty good on the monitor, but I'm trying to anticipate potential headaches further down the line.

My concern is around things like lens breathing, color consistency across different focal lengths, and potential issues with anamorphic de-squeeze if we go that route later with some vintage glass. I’m thinking about the time spent trying to match things in Resolve or deal with unexpected distortions that might not be obvious on a small monitor.

For those of you who've gone this route, at what point does the cost-saving of using these budget-friendly adapted photo lenses actually become a false economy due to post-production issues, or even on-set limitations that I might not be seeing clearly yet?