Stuart Taylor 60ies F1 replica - any experience?

[Terror Factor]

Hi all,

This is a repost of the topic in the track day forum, I figured I might have more luck here.

After viewing the Hagerty video (https://www.youtube.com/watch?v=2SDrh0P2pGk) of the "SVF1 Eagle", a car made by Scarbo Performance (and sold for a wild 350k+ USD price), I looked a bit further and (re)discovered the Stuart Taylor F1 replicas: https://stuart-taylor.co.uk/formula-1-replicas/

They seem to have moved up quite a bit in price (~40 -> 70k~) over the years, but I can't help but thinking they would make for quite a capable trackcar, ignoring the stock open wheel setup. A big V8, but still very light. In my mind, this would result in a low stressed engine and a reliable rack car that is -relatively- cheap to run.
Based on the Hagerty video, and being that they were once the ultimate racing machines, it seems that handling is quite good. They obviously lack the aero of more modern machines, which would ultimately limit their potential, but would probably make for quite an approachable (well... ) car.

I find very little info about these cars, and even less about them being used for trackdays or racing. Does anyone have experience with these? I am mainly looking at the Stuart Taylor ones (gorgeous cars, light and modern V8), but similar cars might also give some insight.

I am mainly interested in the technical capabilities of these cars, less about the rules of trackdays. I'm not really sure how they would compare to for example a Caterham or a GT3 RS in performance, maintenance and skill level.