Its really hard to determine what is a a good setup for the street with that info. It depends on what you think is good, maybe 400 hp is a decent level, that will give you the acceleration you want, it will definitely have the distinctive exhaust tone, and can be built for every day dependability if you do it right. Maybe 400hp is too much for the street, you could also do milder 300 - 350 hp builds. The milder 300 being a more rebuild with only a few upgrades.
Like I said its hard to determine what is right for you, only you can do that. however, here is a link to get you started, its the basic hp guide chart from the 460 forum.
460ford.com :: View topic - 460 Horsepower Chart (revised 11/4/08)
its a great chart, and has a ton of information, and you can kind of get a feel of what the budget would be like for each horsepower range. however, like the link says, the chart can't be everything to everyone, but it is one heck of a great place to start. hope this helps.