I wouldn't rule out an Imex/Taigen pair of IR tanks until you talk to Erik. The prices on the website can be deceiving and Erik can really put together some good deals for RCU members (and buying two saves money as well) so it's worth the time to call him. Heng Long has stopped making IR tanks so they're starting to get scarce. You can check ebay and then check here to see if the seller is for real. Stay away from goRCgo, that site is dead but it will still place a hold on your paypal account if you try to buy something. I think the best I saw on ebay for an IR PzIII (and all I could find was the IR Stug) was around $140 plus shipping, so two of them is a pretty good chunk, and of course you don't want two of the exact same tank, right? Check rcdynasty on ebay, they have the Jagdpanther in IR for $150, but I think shipping to the US from them is about $40 for a tank.