1976 Dodge Sportsman Help

Argh looks like my priorities have changed on this RV. Being inexperienced and stupid driving one of these, I caught the corner of the garage and tore a nice size whole in the siding! So that will be priority 1, then the power steering. Being snowing a bunch here so hard to work on but been researching how to repair. Seems there are a few standard patterns you can purchase new siding in. Then there's the option of trying to find some at a scrap yard. Has anybody here replaced a sheet of siding one one of these things? Currently have it taped down with plastic to keep dry till the snow goes away for a few days and can work on it.
Thanks for any advice.