Just finshed my steering wheel repair on my 46. It had alot of cracks but was repairable. I used a hacksaw blade to clean out the cracks. Used pc7 epoxy, files, sandpaper, primer and gloss black rustoleum to patch it up. Have maybe 8 hours into it. It turned out really nice.
I'm curious out how the orginal material and epoxy expand and shrink over the next years. I'm expecting small hairline cracks but maybe not.
http://rides.webshots.com/photo/2269728600106367558qJBOcy