I'm currently doing something similar but shooting for a bit more HP.
if you are shooting for 450hp or so I'd go with an AEM340. the aem should be good for 600hp on a dynojet. the wally450 can cause cavitation in the stock pump housing. its just too small to keep that up. Also you dont have to worry about drilling out the orifice and running hardwire.
I wish that the ID1700's were available when I bought my 1300's. Just gives you way more head room.
If you are on the stock BOV id get a Tial QRJ. Mine worked really really well.
everything else looks good IMO