Sorry for the late reply but I just read the message. I am much more active on the IRV2 forum.
http://irv2.infopop.cc/eve/forums
I have the 1998 version of your GS-DP and those rubber straps can be purchased at either HD truck supply stores or possibly truck stops. They are used for holding hoods and other compartment covers down. I replaced mine and they were around $9 for the pair. Buyers Products makes them. They are called ?hood catches? and I believe you need the 4? long one shown below.
http://www.buyersproducts.com/Truck-Tra ... h-Bracket/
Re: the Phoenix wheel covers and emblems, try the manufacturer here:
http://www.phoenixusa.com/
If you need any more help with your coach, just PM me.