You should be more interested in .."reading/vicharing..and FOLLOWING the Gurbani"....than in "keeping"...
Anyway keep in MIND that this is GURBANI..DIVINE MESSAGE..worthy of ALL the UTMOST RESPECT you can Give..and MORE !! No way can you give Gurbani "too much" respect..its beyond human endeavour.....KEEP IT IN YOUR HEART !!!
The PHYSICAL SANCHEES....wrap in Clean Rumallahs...and respectfully place inside a clean almaree shelf/palki/manji sahib/under chandoa...as far as you can go Ji...
A SGGS in ONE VOLUME is the GURU...so has to be on a Manji Sahib with Chaur.chandoa etc...preferably in a room by itself.