Would it be wise to reuse 10 year old retainers, springs seats, guides, and locks?

I'm getting my head re done for my project by portflow. at this point I am leaning towards new OEM seats, retainers, locks, while using Supertec vavles, and aftermarket vavle guides, spings would be a combo of ITR outters and Portflow inners... cams would be GSR.

Thanks,
-S