Hi Rhett,sounds like you just need a mild basic set up with minor mods.
manifold - realistically any good aftermarket 4 barrel(dual plane)will do fine.Ultimately as Ohio XB said a performer RPM is a great choice,but if you are on a budget a 2nd hand performer can be found quite cheap.
heads - lots of improvement can be found in the exhaust ports even for first time porters.Remove the thermolactor lumps in the roof of the port and streamline the valve guide boss.Blend the bowl area.match port the openings to the gasket line.You can polish the exhaust ports if you want.
On the intake side tread very carefully.I would advise just blending and de-dagging in the bowl,mostly just blending above the seat area.If there are any big bits of casting flash in the ports take them out but thats it.No polishing allowed here.
Back-cutting the valves will also help.
Camshaft - the cam dynamics/blue racer range of camshafts offer very good value(Made by Crane cams).Can sometimes get cam & lifters for under $200. http://www.cranecams.com.au/caminfo/fordwi6293.htm
the second one would do nice with your standard converter and gears.Don't forget the new valve springs as well.
With a rebuilt bottom end,600 vac sec,upgraded ignition and extractors this would be a nice daily driver.
Hope this helps.