Hello, relatively new to audiokarma and vintage audio, posted recently asking the opinion if the Dolby board on a 9090db should be bypassed. Talked to a local tech about my unit and he estimated $2100-$2500 depending on if we update or bypass the board, which is more than I was hoping for, but also don’t know if that’s a fair price or not. Any recommendations for people who can help with updating/restoration of a Sansui 9090db in Columbus, OH? Unit is in a working condition with original parts, has some rough spots cosmetically