Rebuild 904 or swap for 727?

Pretty much a guarantee that they will tell you what they will use. You start telling them you want this or that they’re likely to recommend you do it yourself or you better be prepared to explain to them why you think you need x, y and/or z when they may say you don’t, that they do things their way. Just a touch of reality here, I’d theorize most shops are going to use what they like to use.

I will see what shops have a good reputation around me and have them rebuild the 904 using whatever parts or kits they suggest.