Reputable dealer? I'm not sure of that but
Botach Tactical has them for $190. The secret to being satisfied with these people is to contact them by telephone to confirm that what you want is in stock. They have hacked a few people off here by putting products on backorder without notifying them first. Others have had no problems with them. http://store.botachtactical.com/gladius.html
LAPolicegear.com has them for $180 but these will be backordered according to the website. You might give them a call to see if they have any available for immediate delivery.
Pretty much what is already posted here. But then again, OpticsHQ is also a member here with satisfactory results, since Mike posts what he has in stock in the Dealer's Corner.