Right.. i need some opinions on the head ache ive got just now.

Ive got a 02 plate 2ltr Focus with just over 69k miles and unfortunately it seems the timing belt had either snapped or slipped and obviously caused a fair bit of damage.
The extent of the damage isnt clear at the moment but the garage expects the majority of the valves to be bent etc.

So to repair that, they estimate around £700, mainly for the labour to get it head off, inspect it, and get it all sorted etc.
Just wondering if it would be a better/cheaper idea to try find a good bare engine to replace it?

PS DIY is probably not an option as not very mechanically minded.

Your thoughts/opinions much appreciated,
Thanks