My previous reply re insurance has vanished...
I use http://www.hagertyinsurance.co.uk/ but they only do classics/sports however classic is anything over either 10-15 years (they were happy to quote for a defender and cover my S3)
They dont seem to care about mods at all and have a motto "until you learn to drive two cars at once, we will allways be cheap for multiplecars" (or something like!)
They do need you to have a policy with another insurere for a "propper" everyday car so are different form admiral Multicar etc. but well worth it if you have a normal car and a few toys. You dont earn no claims however and its limited miles (but still fully comp) they also do guaranteed buy back so if you bin your pride an joy or family hierloom they wont just write it off. Well worth a try in my mind
I`ll give them a go but taken from there website
SORRY WE DO NOT INSURE
Hagerty does not offer an insurance product for:
* Inexpensive home-built car kits that do not replicate a classic vehicle
* Drivers with poor driving records
*
Any vehicles used for off-road or utility type driving * Pro-street vehicles modified exclusively with racing features such as roll cages, wheelie casters, nitrous systems, parachutes, etc. (Consideration may be given to show-use only vehicles)
* Regular-use vehicles driven on a daily basis
* Vehicles used primarily for commercial use
* Motorcycles
* Caravans
I take it that means they dont cover you `whilst` your offroading