Martin Logan CLS II New Panels (Worth it)?

I am currently using Magnepan LRS Plus speakers and am pretty happy. However, like many of us in this hobby it’s fun to try something different. I have the opportunity to buy some slightly working CLS II for a decent price. I have never listened to the CLS but have read they special speakers.  The panels will need to be replaced for approximately $2,800. Any advice from those out there that have had Martin Logan CLS’s and have also owned or listened to Magnepan’s . Would I be disappointed after the cost and effort of bringing these back to life? I favor speakers that are fast and transparent with a big soundstage. I would be pairing these with a JL Audio Fathom F113 to supplement the bass.  The other option is to upgrade my LRS Plus to Magnepan 1.7i.  Any thoughts? Thank you for any advice. 

Amplifier to power CLS will be a Levinson 432