I would recommend checking this forum and asking for help.
It is arguably the most informative set of guys on the whole internet about the 385-series Ford motors. They will help you out.
Don't let Chevy guys tell you a ford will blow up. One guy on the forum has an UN-REBUILT 460 with 464K on it. I personally have owned Fords, Chevy's and Mopars and none is better than the other.
If you shop around you can build a BBF for just as cheap as your average small block.
Generally, nothing against the folks on this board, but most of the time are Ford-haters and useless for most tech info.
About your original question, yes you can find off-the shelf stroker kits for a 429/460 for $1100+ depending on what componentry you want. They make great truck motors and pump out more torque than any small block ever could. Basic canted valve head design is excellent too.
For heads, try and find a set of DOVE-C's. They are the best combination of chamber size, flow, and performance for the money. Also benefit well from home porting.