Kevin is correct, however if you scroll towards the bottom of the page in his link you will see in the case of a like for like exchange for another Rondo Red you can get up to £112-50 which is far more favourable:^ TBH once you factor this in an exchange could work out as little as £262 with the max stated discount for a BNIB replacement. Prolly worth shopping around a little to find a dealer who offers the best level of discount under Ortofons exchange scheme.
Divine Audio offer Rondo Red for exchange @ £281 which looks pretty good & I'd recommend them as I've bought from them before......Our own Jack at BD Audio sells Ortofon so is well worth contacting re exchange.
Linky for RR @ Divine Audio here...
http://www.divineaudio.co.uk/ortofon-rondo-red-moving-coil-cartridge.
One other thing to consider under Ortofons exch scheme it also used to be possible to 'Trade Up' slightly & it used to be the case that you could get the same % level of exch rate against a Rondo Blue.

Used to be the level you could go up to was restricted to t' next model up in the range or sometimes the next range up too......which seems fair enough, so you couldn't go straight from a Red to a Bronze for example, although you could do this from the next trade up from the Blue. A good way of rewarding brand loyalty from Ortofon which should be applauded.
One thing worth noting Lee(Ronin) at this level of sub £400 for a new cart, is that rebuilds of any sort are extremely unlikely to make good economic sense. :nup: Particularly if you consider t' above stated exch values. A rebuild from pretty much anywhere is likely to cost upwards of £280 & you need to have a great deal of faith in the rebuilder to either match or exceed the carts standard original performance. Unless you are returning the cart to the original mfr to do a ground up rebuild this will always be a gamble.
EDIT
Just seen that Divine Audio are currently on holiday & re-open on the 8th....They have an offer that any orders taken during this period will have a further 10% off applied at the checkout, which would make a new Rondo Red exch £253....Billy Bargain. :^ :^