Join Date: Oct 2018
Location: Prescott, Wi. Upper Ms.River bluff country
$500-ish seems upper reasonable-to-high IMHO, for a better quality chain and front & rear sprockets. An efficient shop with an experienced staff I would think could remove, reinstall and adjust the chain & sprockets in about 2 hours or less.
I like D.I.D® chains personally. They hold adjustment well and are durable-about 18,000mi on my ZX11; YRMV. Revzilla has Vortex® complete chain & sprocket sets in stock chain lengths and sprocket sizes for $150-250, depending on application and features. Separate chains and sprockets allow you to customize ratios. I prefer to use a riveted master link on my chains over a clip-type, but I have never had a failure with clips- I just feel safer with a riveted link. The main thing is get the correct number of links.
If you have the means to keep the bike stable with the rear wheel removed and a chain break & press tool, it is not too difficult job to DIY. Some people can do the job without removing the rear wheel on some bikes- I don't know if that's possible on a 'Strom, and I would remove it anyway to look over brake and axle hardware; good time to check bearing wear and maybe install a new cush drive damper.
DYI, start with pencil and paper. Be sure you have the gaskets, tools, thread lock, correct part numbers for the job. Don't forget Nitrile gloves or lotza hand cleaner for the thick chain glop.
"It is amazing what you can accomplish if you are not concerned with who gets the credit"- Patrick Griffin
"I never said half of that stuff."-Confucius