Rebuilt Porsche engine with 8300 miles? I'd question what actual engine it is. Most here use the Type 1 VW bug engine. Stock it was 50 hp but can be modified to over 120. A real Porsche 356 engine (or later 912) was same 1500-1600 cc displacement but produced 75-90 hp. A real 356 is easily 5-10 times more expensive to rebuild and probably maintain. I guess it could a Porsche 914 engine but that was really a VW Type 4 engine (1.7/1.8/2.0L stock 76-110 hp). It is a strong engine but costly to convert to power a Speedster - 2-3x cost of the bug engine. Verify engine and specs. Post photo here. Other than Porsche bragging rights - most here would probably prefer a well-built VW T1 engine - large # of cheap VW parts easily available.
A 1600 cc VW T1 engine was 50 hp so not blistering fast. If you are ok with car's acceleration and noise at cruising speed, check that it doesn't overheat after 30 minutes of hard driving and that it doesn't leak a lot of oil (all seem to leak a drop or 5). Ask for the engine serial #. Check also that the chassis serial # (VIN of sorts) matched the title and chassis.
Does it have a top and side curtains? Many home builders don't get that far. Can be a wet drive. The car of DrClock's I posted was a CMC - my car is a CMC. There were more of them produced than any other company but majority as kits for DIY build.
Here's what a 356/912 engine looks like - most obvious feature is the oil filter mounted on the cooling shroud (left upper circle), oil filler (right upper circle) and the generator (center circle) (vs alternator).
