£210 through honda happiness

i asked how much to change the oil seals for cams and balancer etc with me supplying the seals ,"thatll be another two hours labour" £140 + VAT.

he said "the balancer shaft oil seal replacement will be an engine out job"
i say "no just remove the old one and replace with a new one, and i also have the retainer clip thingy to go on aswell"
so roughly £400 plus the price of a water pump if i get that changed.

but regarding the balancer shaft seal can someone tell me i am right and its just a straight forward remove and refit???
this'll need to wait until after christmas.