New Engine hunting begins

Well after the Retro Rides show, its all to obvious that the engine is not in good shape, I have two options:

One, remove the engine and rebuild it, leaving the car sat to one side until I have done just that, or

Two, retro fit a replacement engine so I can continue to iron out all the issues with the HA and at the same time rebuild the engine to put back in at a later date.

I am going for option two, so start with a plea on the forum of the owners club for engines, hunt eBay, try the chevette owners and or call a few people.