I think you did a pretty good breakdown… but I would split the preamp / amp funds 1/2 each or more to the preamp… really important.
I completely agree with the speaker investment… I would combine the funds of sub woofer into the main speaker… or get 2… always add subs in pairs. Speaker differences in the $20K to $30+ are substantial in my opinion.
I usually spend all I possibly can on components… then over time add the other tweaks. More on the DAC…. $7.5 and if you can on streamer $7.5K (maybe used to get a really good one and you can get very vinyl quality from your streamer.