Just something I made.

It's a little short track made for the UF1/MRT (made originally for UF1 but if you're so inclined you can use the MRT too)

Tips:
Make it a bit wider, longer straigth lines and dont use those buggy barriers, use those other walls instead, but i cant remember the name, add some tires to protect you from spazing out by hitting the wall, and more runoff areas.

Good luck!

if you follow Arox's tips your layout WILL be perfect.