[Buying] Smoke Grenade -- honest traders only

Looking for a Smoke Grenade (Rare grenade). I've got gear and mats to barter -- tell me what you actually want instead of 'best offer'. Honest traders only, I've read enough horror stories this week.

Vouch for this trader, done clean deals before. Barter's fair, no games.

Would a stack of mats plus something spare be fair for this? Still learning what things are worth.