Small update...
I thought I guessed some good fitment, looks like I was wrong!!!

The photos are shown on the spare, and they have narrower tyres on than I wanted too.
People have been popping up all over with suggestions for 'mad camber' and stretched tyres but I'm not personally a fan of either of those, I want tread on the road and I also want a relatively era-correct look for the car too.
Now having to rethink everything, I'm considering some very subtle over-fenders but would prefer something made to fit than bolt on, my fabrication skills aren't up to par to completely make something myself, at least not to my level of perfection I'd want

so does anyone have any good suggestions for similar fender-flares that could be modified to fit? I'm not sure too if I'd then need some subtle skirts to tie it all in too
I imagine the wheel arches are a very similar size to both the 2G and 3G Preludes?
I've had a quick look online and found a 2G with over-fenders but the image quality is awful, they look like they're made to fit but then riveted at the bottom which I've never personally seen before!
Correct me if I'm wrong in my judgement of that? I've never looked into over-fenders or flares too much before...
As an idea I'd prefer this look:
To this look:
I'm not sure where to even start looking tbh. I'd be massively grateful for any suggestions that may help or give me some inspiration
And for anyone wondering the wheels are the Lotus Eclats, they're 14x7 and measured them at et18 but may be a few mm out. The 4x114.3-4x100 adapters convert them to et-2 based on the estimated offset measurement.