Instead of pitching the railing straight up by 89.95 , just tilt it up by whatever degree you want it slanted (ie. 44.5).
It ended up impossible. 2 of my 4 pieces could work using roll and then rotating them back to face the right way, but 2 could not without making them stick way out and not match up again. It wasn't possible so I left all 4 of my railings straight up and down. I had to face the fact it can't be 100% accurate like the house I am trying to replicate.