Can I add just a clutch pedal to auto pedals?

It's supposed to hold 1000hp. They are cheap in the junk yards, anywhere from $300-900. You can actually buy a brand new one from Nissan for somewhere around $1600.
Are you serious?!
Sign me up.
Wait. I can't afford to be the guinney-pig on this experiment, on my semi-retired income. But if somebody else can, lemme know. Ima gonna start saving today. I got or would like to be at;450 hp. And I will even put Caltracks on or something, for that one. Hyup
waitaminute.
I just thought of something.
I like cruising at 65=2200. This is a fd of 2.76.
Taking 2.76/.794=3.48 so that translates 3.55s (which I already have) .
Now if I was to to able to hit 65 at the top of third gear say, That would give me 3 gears to the charge! Three!. Ok so what would the rpm be?
(65x1056x3.55x1.624)/85 = 4655. Hmmm a little low, perhaps. But if I swapped out my 276/286/110 cam which peaks around 5200, for a cam 3 sizes smaller on the advertised, But stayed closer to the .050 number of 230* and tightened up the LSA to maybe 100 to 106, to match those splits; I can maybe see that working. Ima thinking FTSolid. Maybe 262 advertised. Hyup, that would be 2 sizes smaller on the advertised. I bet I could make 400hp on that. And I bet I could put nearly the same average power down from Zero to 60mph. And I bet I could do that, or make it do that, in less time time than the current combo. And then I could make better Mpgs at 65 with the same 2200 cruise rpm. Hmmmmmm,hyup I can see that.
Where were you when I bought the GVOD?
Common, somebody step up! Plz!