Yay! Insurance! A bit different though

So, myself and my mate are building a track day Eunos. It won't be used by ourselves for anything other than driving to tracks, and taking to each other's houses. We both have daily cars and even second cars, so it really well just sit and wait for its abuse. At a guess we'll only manage 2 or 3 trackdays a year max.

Are there any policies that will take this into account? Can't do classic as i already have a Cav on classic. Don't want actually track day insurance.

Brentacre (favourite company) will do it for £389 and we'll be going halves on everything, but this still seems more than necessary given the limited use.

Thanks in advance!