Your close to a complete ST track kit with your descriptions. We have members with the exact kit so hopefully they'll respond.
You do need the radiator brackets, I believe they lower the radiators.
I can't see why a hose can't be cut down, but I've never done it.
Someone asked me to make up some ST brackets awhile back, once I got the photo I replied to him that I'd need a set to duplicate and it wouldn't be "chicken". Welding, bending etc; Wish I still had the pics.
All our government does is distract us while they steal from us, misspend our tax $ and ruin our country