On my 99 RT Versatile----Side storage compartment hinge. Moore Industrial Hardware www.mooreindhardware.com Part #4561-2231-020 24mm x2 meter black centaflex continuous hinge 6' In 2011 the cost was $25.16 plus shipping, total $43.13 The original hinge was installed with rivets but I used 3/16 stove bolts just to simplify the installation. I was going to remove the bolts after and replace with rivets but found it unnecessary. the bolts worked just fine.
The hinge on the step is Stainless steel piano hinge and I presume it is the original.