flywheel dilemma

My Renault megane scenic 2002 auto has a faulty starter motor ( which is still under warranty with the r.a.c)However the r.a.c.are now telling me that it is a problem with the flywheel and will not replace/repair until the flywheel has been replaced...

Anybody any advice on whether its worth taking on such a big job . There is also the cost, I have had 2 quotes both over £900.......the car isnt worth that much!

Thanks.