Give Chris Knott insurance a go.
I was 19, 1 years ncb, just under 2 years driving and a fairly decent postcode and it was £800 tpft&t. That included shocks/springs, stainless exhaust system and a k&n filter. They were cheaper than HIC and Adrian Flux by a couple of hundred quid(i guess they just aim for a different section of the market), so worth a go.
Admiral/elephant/bell are all worth a go as they were around the 800 quid mark, although that was with the car standard.