5mg is not even that much ime.
DOB is pretty "hard" for a psychedelic. Long duration, crazy peak, you're just getting steamrolled for hours, very strong stimulation.
High DOB and DOI doses are absolutely insane according to the few overdose reports.
I think the one A-PHP batch I had was very weak.
The temple should indeed still be around yes, there was some brief talk about it in PD some months ago. Apparently they'll be screaming verses in your face while you're tripping absolute balls on DPT lol. If you ever go, please report back.