Never seen this combo before.
Leaving aside the rotten photographs (apologies for not rotating the engine pic) and the seller's spelling, what lets this down is the crap - his word - cosmetics and the general sense of shade-tree engineering.
Herald.jpg
But it's on the road, 3.9 Rover V8, five speed, Scimitar rear axle.
Weighs nearly nothing, bet it goes well.
Heraldengine.jpg
An idea for something different.
Going to be cheap.
https://www.ebay.co.uk/itm/triumph-herald-coupe-v8/232792977880?hash=item36338af1d8:g:ZfQAAOSwqYZbFFMz
Ivor