Hello A10GE
I have made it so that the tonneau still fits underneath and is held up against the bottom of the windstop (trimmer) by a bungee cord. I will post some pictures as soon as I figure out how to do so.
The engine blocks are imported from the States by Specialised Engines Ltd who do a full refit- clutch, distributor, water pump oil pump and carb etc
I delivered the car on a Saturday and picked it up the following Saturday.(I was also given a set of photographs of each stage of the engine build.) You may be interested in having a look at their web site. http://www.specialisedengines.co.uk/index.html
I am not sure whether it is the Pinto block as they refer to as the American long block motor which was a specially developed CVH motor for the American market at the time.