Depends what you're looking for, if it's performance then there are other routes. The 454ss in that day was a dog! I'm sure it has potential, but you'll be dumping lots of money into it.
If you like the looks, get a '91 reg cab, drop it, put fat tires on it, etc., make it look similar and for much less. You could probably get a nice '91 reg cab for under 2k$. Then, throw that 383 torquer from GM parts in there and you'll have a lot more power and run a lot quicker than a 454ss.
Just my opinion, I know there's the thing about owning a 454ss, they look tuff, but aren't performers at all.

Even with my truck getting 20mpg+ (when i'm not on it, haha), it still sux to fill it up, I'm actually considering an econo car, maybe a cavalier or something just to drive back and forth , then i'll have the time to mod the truck.

good luck,

allen