Wow, I haven't been burnt by the exhaust... yet... I did throw a fleece jacket over the seat once and melted the sleeve. I'm ok waiting for that battle scar! Hope your leg feels better soon.
And your signal... been there done that... Hubby is an HVAC tech. The tape that they use to seal ductwork (not regular duct tape) is shiny silver, and holds wonderfully. I had mine taped up for weeks before I was comfortable with replacing them. Scared I was gonna drop it again!
By the way, here are the signals I bought. Cheap, chromed steel, look great. They could be a little brighter, but I love them. The seller also has red, and sets of 4.
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=360279472847