Regarding the lossey/gossey feel. The last thing you need is a strong engine [ ie. fast car ], and a worn out suspension and drum brakes. You can swap 70's-80's disk brakes on to the front and putting a '65 or newer rear end with flanged axles couldn't hurt although it's not really necessary at this time. Chances are good that the suspension bushings front and rear are shot from age. Bushings are relatively cheap and except for the LCA are easy to replace. Use either Moog heavy duty or poly. Personally I use poly for the UCA and the rear shackles and Moog for the LCA and strut rods and the front spring eyes. Strut rods bushings are very important since they maintain toe in. OK, the others do too, but they have a LOT to do with it. I guess I've spent enough of your money for now, good luck.