Oky doky, this is the kind of thing where
some extra dough from the outside would make something at a higher level possible.
If we buy a new, basic Hurst shifter and install kit, it's about $300. However, there is a pretty slick sequential shifter setup for the Top Loader. Guess what? It's more. Like $700. But banging through gears sequentially with just a push or pull would be pretty awesome. Pretty much like this guy.
Check it out:
http://www.renagate.com/