DIDITO DITTO and MORE WAYS TO SPELL DITTTTTOOO on the steering.
When we were all new drive train and stock straight axle with 1.5 caster max and old steering parts. High speed was a pucker. One guy cutting you off and I feared to snatch the wheel. It helped a bunch getting all new kingpins, tie rod ends, drag link. even after upgrading to power steering it was still wandering. Now its up to a much higher caster and much stiffer arms and life is much better. but you can resto mod that 1938 up to something that looks 38 but drives more like late 70s and beyond.
And I always say
"It is still your truck, your drive and your life" Build it, drive it and live it the way you want. Just take into what all the guys here say form you own opinion (let us know your plans so we wont bug you so much) and start your builds. We will be glad to assist in helping in the directions you choose.