Id call up the places you have insurance with and get them to fight it out basically as that way you will get a good price and trader insurance but i doubt they will combine insurance NCB for you im afraid even if you have different policies as they will prob see them as the same calendar years and some bobbins
23 i thought you were like 27 or somthing matey! that makes you younger than me
Really though if you trade enough cars to get traders insurance its worth the money and will save you so much hassle as well and means you can drive any car fully comp then
and insuranc all your vehicles under one banner and save paper work