Based on your description and the pics I would buy it in a heartbeat.
Excellent driving car and collectable.
They are not far removed from the 356 which is the most collectable street Porsche you can get right now (and has been for quite some time).
If you are in doubt you could always give a refundable deposit to hold it until a shop can run a PPI on the engine and/or anything else you want to have checked out.
Those early cars....mmmmmm........good stuff there!
