Alignment shop says they can't get over 1 degree positive caster on 73 Scamp

Thanks everyone. I am just going to do it myself. I have a feeling taking it back to them a 4th time and giving them the same talk and settings I did all 3 times isn't going to get a different result.
As mentioned, find an old-skool shop that understands torsion bar suspensions. I have to go 35 miles from my home to the alignment shop I trust.
BTW, you didn't say what kind of driving you'll be doing. If it's mainly a DD with manual steering, low speed steering effort will increase with a lot of positive caster. Now if you're planning on carving it up, then you'll want more caster.