Custom throttle linkage

Hey guys and gals I've got almost everything together to do my p-pump swap and was wondering if you guys have done any custom throttle linkage set ups? My truck is a manual and was gonna try and machine out a bolt on throttle mount that isn't so big and bulky. Also I'm currently at 623hp with my vp and was wondering where my hp would be after my swap I'm going to:
He351/s475 compounds
Extreme duty push rods
110lb valve springs
180 pump with haisley 5k gov springs, full cut dvs, .120dv holders, adjustable fuel plate that I custom cut, adjustable pump gear (plan on setting timing at 26*) pump has also been benched and flowed.
188/220 cam
200hp Vulcan nozzles
.093 crossovers
.093 injection lines
Fluidamper
And some other small odds and end stuff
Nv4500 with 3850 dual disk

Thanks!

I bought crazy carls apps kit. It works decent and isn't to hard of an install, and not to expensive compared to other stuff.