I'm looking to sell my car privately soon. A Mazda 6 TS2 worth around £2,000 - £2,500. The thing is it's due a service and MOT in April. So should I get that done now and just absorb the cost or should I leave it for now? I'm tempted to leave it as the cost could be 10% of the selling price but I know if I was buying myself a new service and MOT really helps. Any advice?