Not a bad price that to be honest. Bell don't do the Type R/RA, not on their system. You might find some chaeper but not by much, check the accidental damage excess just in case as well, if it's around the £350 - £400 mark stick with it...any higher keep looking.
I'm with L & V and paying £590+/- on a MY93 JDM WRX (I'm 31) the same car with Admiral was £850
Good luck
Geraint