Question on Grate Size For Spirit-E310

Hi all. I have a 2014 Spirit 310 I love and hope to get new grates for as the ones I have are falling apart

We contacted Weber and they said we needed a 69801 grate size but cost almost $150. I just can’t justify spending that much for grates for a 13 year old grill.

Has anyone bought off market grates for a grill like this and been happy with them? Thanks for the help