The spacer blocks and rubber straps for the shock reservoir are still available from Suzuki. A bit of a hint with the CDI strap, make sure that you use the genuine strap and rubber plate that fits between the CDI and the frame bracket. If you use something other you run the risk of squashing/distorting the CDI and failing it. I had the same issue where cable ties had been fitted by an over enthusiastic owner and caused an intermittent no spark.
I'd also check on the radiator louvers. This model needs all the cooling it can get and the pics show someting covering most of the radiator. From the factory these bikes had a simple expanded wire unit that did 3 fifths of stuff all when it came to protecting the radiator. Last thing you need is a seizure from overheat.