Good to hear you have it back, but make sure you haven't got back a shitbox. 4500km is plenty of time to wreck a car.
I'd be getting a trusted specialist to go right through it; to ensure you don't end up footing a bill for thrash related repairs down the track.
Complete fluid flush (diffs, gearbox, coolant, engine oil, brake/clutch fluid etc), and a full going over. Hope they catch the f**ker.