Well, as I finished clearing the areas of 20F that opened up after the postgame and writing down the location of each Ver. 2 Boss, I managed to get each of the random drop items (I was missing 3 when I started, ended up with 2 Divine Spirit Barriers, already had the Flower, and got Armads/Scourge in 2 straight battles, woo).
So now I'm sitting pretty at Reimu LV 135. Should I level some more, or do you think I'm fine to start the Ver. 2 touhou bosses? Or should I do Boss Rush first, and if so, what level should I be for that? I understand that it's the same exact bosses as before, but I still don't know what level I should be to confidently beat all the bosses without worrying about losing a character or two, since that would make the last bosses much harder. Should I get to 140-150 or so?
I've only beaten the 1st Bloodstained Seal boss so far though, so I may see about beating Beast of Centaurus first before I do either of those. Not sure how tough the next Seal boss is...