There is no doubt that the euro varioram is alluring, but they all have about he same mileage as mine and will probably be in somewhat poorer shape due to european driving conditions and resulting higher temp/stress. If you go that route you might want to consider a tiptronic version. It will likely have seen less abuse.
My euro 993Rs has been torn down to the crankshaft and will recieve all new hardware, from rod bolts to headstuds. In addition to p/c, cams, valves etc.
Here is a 360 hp 964. Still supposed to be streetable(but I don't believe that, I looked at a couple of 993 RSR in that same range and neither would run on 94 octane)