911s motor @ SMC ?, seems ok but... Options

[porschetub]

Got a black Friday special from them this motor included,no real rebuild history 300 miles since rebuild ,increased compression and numbers supplied which really if a rebuilt motor would be a little off the game for only 300 miles (15+%).
Factor in 2.7 issues and it sounds like a cheap build @13.5 K even its a complete motor,things that come to mind;
Case clean ,measuring and possible line bore and resize,
bearings gaskets, chains and ramps,
pistons and barrels...can of worms costwise,
head studs which would need replacing,
crank ? measured ,polished/reground and cleaned,
heads,cleaned,flycut ,new guides,exhaust valves @ minimum,
rocker arms,cleaning measuring,rebushing if needed,
oil pump stripped and inspected,
parts for injection system,injectors tested,fuel distributor etc,
plus altenator rebuild,clean ,paint engine tin and shroud,
new exhaust fitted,
then sh#t loads of labour to box it up,
etc etc.
Numbers don't work for me if all the correct work has been done (IMG:style_emoticons/default/confused24.gif) (IMG:style_emoticons/default/confused24.gif) ,need this for possible purchase of a 2.7 which I don't really need (IMG:style_emoticons/default/av-943.gif) (IMG:style_emoticons/default/av-943.gif) .
Anyone rebuild a 2.7 and can confirm numbers for a rebuild to a similar motor /
TIA.