Now you know why the shop wanted 60 bucks.Those cheap inverted trimmers are not fun.

Been There And Done That, Not Fun! Have you searched for Youtubes and instructions on-line? I find this to be time consuming but very helpful on unusual task. The link below might be helpful:

http://www.ereplacementparts.com/article/6299/How_to_Fix_the_Starter_on_a_Ryobi_Trimmer.html

I found it and other using a search: Ryobi CS26 string trimmer starter rope replacement youtube

Take a break on the Monster, Sleep On What's Missing and it usually come to you days later after you refuse to give-up if you are a regular troubleshooter. As stated, some jobs are not worth the time or challenge even if it is for a deserving person. My test on a deserving person (my Mom) is, would they give their time to this task or trade a task just as time consuming or simply send it to the shop or purchase a replacement.

Good Luck!

PS. I have two unseen two-cycle task coming at 10 AM but will be finished by noon regardless. LOL I respect my Peace Of Mind and Quick Help Within My Range!!