New 351 Combo and Est Help Needed!

Well, this comming friday I will be getting a 357... I pretty much have my mind made up with most of the parts I am using, but suggestions are needed also!

1969 Mach1 block
turned stock crank
forged rods
forged pistons
10.5:1 CR

Stock 69 heads, ported, 2.02 valves
unknown cam, 288 ad. duration, .49x lift
Typhoon intake

fuel rails (any suggestions?)
30# injectors
255 fuel pump
fuel regulator (suggestions?)
braided line (size suggestion?)

BBK CAI
MAF (size and brand suggestion?)
Accufab TB

BBK swap headers
BBK H pipe
Spintech muffs

MSD Dizzy and coil
FRPP Wires
NGK plugs (What heat range?)

The big question I have, is about Nitrous. I want to run a wet system around the 200 shot level, if the block can take it. I have never messed with nitrous, so I don't know anything about it, I had been researching turbos because that is what I wanted to do, but with my CR, I no longer am thinking about the turbo.

I know I need a MSD window switch, and I need something that will retard the timming when I am spraying. Anyone know of a kit that will suit my needs? I also will need a bottle holder, and a bottle opener.

One last Q, how much HP would y'all estimate this setup making, with and without the nitrous?
 
as for your question about timing retard get yourself a msd digital 6 ignition box. It has 2 rev limitors and a timing retard. Works great for my nitrous set up.
As for braided lines i went with push loc type of fuel line. It was cheaper and NHRA approved. At the time only the blue color was approved.
I really like my XE 274 comp cam. Works very well with my nitrous and gives me great N/A power. I only have 8.2 to 1 compression. I need more.