Hi Dan
I haven't shown either of mine at shows but I regularly visit them to drool over some of the metal / plastic / carbon on show!
Last year's Piston Heads show at Bicester Heritage was spectacular with a huge variety of cars on show. There was a Lotus specific area though organised by the Lotus Drivers Club, so I'd recommend joining LDC if attending or showing your car at events is what you're looking for (and getting suitable advice on prep.).
Here's a little taste of the stuff on show at last year's (2025) Piston Heads gathering though...
Cheers, Eric