About half of it will! Seriously though no it wont, but the Syncro boxes are readily available and cheap enough.
A fair price for a decent rod change box is anywhere between 75 to 125 pounds
You cant get cheaper than this http://www.vwsyncro.co.uk/data/forums/topic.asp?TOPIC_ID=1711 []
When quoting a premium Insurance companies take into consideration the original price of the car, and as the 90 bhp Golf2 Syncro cost more to buy new than the Golf2 16V GTI they assume it will also cost more to repair, and this is taken into consideration (along with other things) when they quote for insurance.