I'm not trying to rain on your parade in any way. I'm excited to see how this whole thing turns out and I support your idea fully. That said..... You NEED to change the spring. You're gonna valve this thing soooo stiff trying to compensate for lack of spring, then when you get the right spring you'll be starting all over again.....
Hell, I may not know what I'm talking about but I just don't see it working very well with the stocker.