My opinion...
Ditch the 135 set, 225 and 315 is a good warm up...then ditch the 365, straight to 405x6, then go to 455x? for 2 sets
Try that for a couple months then try a max. Right now, just looking at #'s my guess is 500-515 is going to be max for you, although I don't know how hard your workout is for you, you know? Just a guess.
BTW, since I started alternating rack pulls for 2 weeks/deads for 2 weeks my numbers have gone up. Just a thought.