Insurance

I would like a job with a local courier driving his 15 ton Daf. He’d be happy to help towards the cost of a Class 2 licence as I currently only hold a 7.5 ton licence and only have a few months driving experience in these. (I am 54). Trouble is, his insurance have said as I’m a new driver they’d be charging him an extra £3k. Is that a competitive quote or can anyone suggest an insurer that would be cheaper?
Cheers for your help!

This may have been better in the New drivers forum so I just created the same post there. Would an admin please remove this post?
Ta

When I’ve been dealing with insurance quotes the brokers aren’t interested in experience ,but more how long a hgv licence has been held which seams a bit wrong really as someone could pass the hgv at 21 ,not drive at all ,then at age 50 odd get a driving job with the insurance cost being that of someone with years of experience .