i love having a huge backyard. My dad lets me use his tractor that has a farm plow so I can rip up 10' lanes in like 1 hour. The only thing i wish we had was a bucket loader like you said you have. Making jumps with a shovel really is a pain in the *****. Right now i have around 5' lanes that are too small now that my brother also got a nitro. It was fine for just my tmaxx. So as soon as i get the chance i am going to double the width of the lanes. Here check out my track. There are no jumps because we tore them down so we could plow the track again. We were away for a week and the track looked likea jungle. Next video we should have jumps and possible a different layout. Heres the video.
http://www.youtube.com/watch?v=4J6bC-noyUY