HELP! Weed Eater BV200 - Cylinder Base Gasket Needed

[GTSAW]

Pick up a Weed Eater BV200 off the street looked decent but wouldn't start due to low compression. Decided to take it apart, cylinder not scored, ring stuck I replaced, noticed it was missing the base gasket (o-ring type). I've searched on-line for a gasket kit, some show it for $50 not gonna happen any suggestion? Thank you.

 

[EFSM]

Use a good sealant (The Right Stuff by Permatex is what I use).

 

[eric4]

Threebond 1184 has worked really well for me, but I can't say I've tried others either...

 

[GTSAW]

Appreciate replies, was thinking this was the way I'd have to go but wanted to know what others have successfully used first. Thank you.