They have very good reviews, here's a link to the reviews.
https://www.tripadvisor.com/Attraction_Review-g60763-d16704923-Reviews-Nowaday-New_York_City_New_York.html
Don't attempt to drive it home, unless the journey is entirely uphill.
" Four-wheel hydraulic drum brakes are present but currently do not function, and the seller notes the emergency brake can be used to stop from low speeds."
The guy in that video I posted says some things which are not correct. He seems to think that if you install the timing belt and are off a tooth on the timing marks you can compensate for that by adjusting the timing at the distributor.
Instead of casting a new block, might it be possible to do it by machining; like machine two halves and bolt them together, or put them together with a spacer between?