jet sled seat ideas

i am looking for some ideas on mounting an eskimo ice fishing seat to my jet sled. any ideas on the build. I have a milk crate that I thought about using but ive also thought about using some 80,20 aluminum , to build a frame for the seat. was gonna load some pictures but don't really understand the html stuff associated with the process.

well I tried the milk crate and didn't like it. I was able to aquire some 80 20 alum from work and built a moveable frame still waiting on the ice to try but looks like it will hold my 280 lb butt.
I tried to post a pic of the seat but I'm a fisherman not an IT teckie so I wont post pics.