Build plan looks good.
Unless you already have the 440 cc injectors I'd suggest going the larger injectors initially. Haltech ecu would have the tune-ability for lower duty cycle on 98 octane (MoTeC ecu's can).
Balance the full bottom end assembly including harmonic balancer and fly wheel.
Not too sure how turbo would go staggering cam lift as well as duration.
My research has revealed same duration or longer duration on exhaust. I believe that kelfords turbo cam is like this.
Valve springs are on my to do. At elevated boost, the power on mine decreases with no increase in intake temp or boost loss/creep. May be due to stock valve springs not having enough pressure to counter boost pressure,not allowing valve to completely close