[HILLY]

Ravenoak.
It sounds like the Ferrari is the best option for you given your line of thinking.
If on the other hand you 'really' wanted a 40 and you were to invest the money and more importantly the time to build an RF (or other replica) for yourself your thoughts on value may be somewhat different.
Bills analysis of relating the 40 to a 355 demonstrates the price comparisons between the US and Australia markets. If in your comparison between the two vehicles the value was gauged by factors such as uniqueness, attention generation and owner satisfaction the 40 would be much more valuable than the Ferrari. But that is my opinion and I have never owned a Ferrari.
You on the other hand would choose the Ferrari but never the less the asking price of the yellow 40 is what it is worth to the owner and by the sounds of the testimonials would not be too far from the cost when an allowance for labour is taken into account for a quality build.
Just my 2c from this side of the fence.