ok so timing belt came off, I have an 07 b7 a4 2.0 tdi Sline, 140k cat d, is it worth fixing? quoted £1200-£1500 depending on how many valves, get a 2nd hand engine? or sell it as is, id say before it went car was prob worth 2k, what yas think? have been offered £700, if i fix it I'd run it into...