I got the engine deck screens from AliExpress. Their search engine is horrible so less is more with them. I typically search on "ZTZ" and that's it. If you try to narrow it down more it gives you all kinds of stuff you aren't looking for.
https://www.aliexpress.com/item/3301224 ... web201603_
The screens can also be had from MatoMart in Canada.
https://www.matomart.com/prodview.php?p=3668
The Tamiya TBS Apple requires either a Tamiya or a Clark mount. I used a Clark mount in this tank. I think Impact used to make a base also, but not sure if they still have any stock left. The Clark mount uses a standard 5 pin JST type connector that did plug directly into the Open Panzer TCB board. The Tamiya base which comes with the apple could also be used with my board as I have a cable conversion kit that converts the Tamiya connector to the JST type. I do have a JST pin crimper tool so I could also cut off the Tamiya connector and re-pin it for a JST, but I prefer to preserve factory connections whenever possible. The Tamiya base is much larger and better quality than the Clark base, but I didn't feel like hacking the crap out of the Tamiya base to get it to fit. I felt much better hacking the cheaper Clark base. I did use hot glue around all of the Clark wires as they have been known to break off or move out of the connector causing poor connections. Since you are in the US the Clark base can be had from these guys:
https://dakrctank.com/shop/tbu-base/.
The Tamiya TBS kit will come with the apple, the IR emitter, and the Tamiya base. Compatibility of the Tamiya TBS depends on the control board you are using. It will not work with the stock HL electronics.