Before all the 'wanted to find' stuff gets too far, this is a completely different situation w/ it's own concerns!.
Be careful laying out too much info as today's shucksters could easily create an engine for you by knowing only your partial Vin and build plant!.
In many cases, knowing only the year and model of your car and combining the Vin's last six w/ monthly production listings of the known plant gives enough info for a 'numbers matching' engine to be created...without even needing to know the body style!.
Sure, it's a bit of a chance perhaps for a crook to take but considering the value an original engine has on certain cars, if he knows you're already looking and has the correct castings on hand...he may not even bang the Vin etc into it until he has you partially on the hook!?.
~ Pete
