like the plan, but for the plywood.
i had something similar. i used 2x4s. couple hooks on the side for straps. space underneath for tools and a hole in the center for draining fluids into the pans. nailed a cheap harbor freight wheel chock to the front. poor mans solution. but worked.
so much better than crawling around on the ground. and could never quite justify the handy bike lift.
Motorcycle Lifts | ATV & Snowmobile Lifts | Truck Tailgates | Handy Industries