Wow, they are making some mark up on that.
I wouldn't entertain it without full receipts and paperwork for the gearbox work, preferably from a specialist. The mileage is signicantly lower, I'd want proof of how they have worked it out if they have worked out when it was converted from KM to Miles.
The filter looks like cheap rubbish. I dunno how they say it has fantastic oil pressure. The OEM Brembo's are only 4 pots, not 6 pots. Its gone from not bad and no mint to absolutely rust free. I'm not sure.