Fastest way is to built it, not sure what kind of luck you would have on Amazon or a RV salvage outfit in your area.
A Poly cutting board bigger than the sink cut to fit.
2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping