Leak Delta 70 - overhaul or new amp?

I acquired a non working Leak Delta 70. I would love to hear what it sounds like, but I have been quoted around £200-£300 for fix and complete overhaul.

now is it worth it? I can't really get a 70w amp for that price, and with an overhaul it will be almost new (Londonsound are Leak specialists). Or should I spend the money on another second hand amp?

Would like to know your opinions on this.