Haha no worry, its just my occupational disease😂😂
The synthesis presentd by your is pretty classic but teadous.
Actually i mean using nitronium salt like nitronium tetrafluoroborate (and of coz in the absent of water). Usually demethylation require nucleophile, thats why i think only nitronium salt works but not nitric acid, so you dont really need install the -Ac protecting group and deprotection XDD