TrevorKlein
Ya got to be REALLY CAREFULL about mounting luggage to a "Sissy Bar".
If ya look you will see all the luggage weight on motorcycles is mounted LOW as possible.
You get "TOP-HEAVY" and you'll go down super easy !
You can lay a Duffle bag across the seat ... but you better not stand it up !
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The Savages had removeable backrest made into the fender rails. If you can find a pair of them on ebay , that would be your easiest option. Its a direct bolt up thing.
Merry Christmas and good luck

Yes , that's a BF Goodrich Radial GT car tire ... in 145/80-15