'70s Murray Wildcat bike project?

Ok' i just rescued a Dyno from the side of a mobile home, hasnt been ridden since 2001 and was in the same place the kid left it out in the elements. The seatpost was in fact fused (well, it seemed that way, AL post and cro-mo frame) so i cut it off and used a sawzall from the inside and cut The post wall to the frame. That allowed me to squeeze it with a pair of vice grips and break it free. The crank nut was in fact reverse threaded so dont kill yourself trying to loosen it going left, try right. If that fails, get a strip of metal And cut the end like an open ended wrench, then tack weld to the nut. Your going to replace it anyway. Same as headset or you could dremel cut the nut off. Remeber the gooseneck is a wedge fit, loosen the nut about .5 inches high and tap with hammer. Those New rust chelater dips Work like gangbusters, melts the rust right off, ie. Metalprep or rust-evaporator, rust911, etc. Remember Kramer riding the girls bike on Seinfeld? It was on last night ! Can you believe that...