I know exactly what your feeling man. Did the same thing and have not been happier. Before you decide on doing this just be aware that installing manual steering on a power steering gearbox is quite a hassle for some but i dont mind. With that aside, this is what i did on my 66 coupe.
1) Got a Manual drag link on ebay for 55 bucks.
2) Rip that crap outa there.
3) Simply install drag link replacing the control valves spot.
4) Sell power steering for 200 bucks.( i sold all mine on craigslist for 250 and the guy was amazed at the price so you may get better)
All in all, i made 200 buck profit, and my car doesnt leak like a sieve.
Took 30 min to install.
Note: be careful taking out the pump and hoses. PS fluid will get everywhere if your not careful.
1966 Mustang- "Five liter Fury"
Wimbledon white with guardsman blue stripes
Ford Racing 302 gt40 aluminum Heads, e303, Edelbrock rpm intake, edelbrock 600, All Forged, 1.6 roller rockers. 340 hp, Ford racing t5 super duty,