100k is the general rule of thumb on struts. It wouldn't hurt to do the front's, if for no other reason than to keep the ride and handling in balance. Having 100k front struts with 0 mile rear's could do funky things to the drive quality.
I may go for it for $200, I priced the struts and mounts. KYBs.
The OEM is KYB, the brand is on the shock. Both made in Japan. KYB said they are designed a tad bit different from the OEM to account for older suspensions. Both are made with the exact quality control. Some Toyota shocks may be reboxed gas a just.
They said both are great choices.