I also have Clark Boards and several IBU2s, and like them both very much. To me it comes down to two factors - budget and space. It was obvious it would be quite a chore to get an IBU in my new Sherman so I went with Clark, but I did squeeze an IBU into my new Stug III. I think I can get an IBU in a PzIII but it may have clearance issues with turret rotation. I'll find out one of these days.

So my solution has been to get the best board I can afford at the time to fit in the space needed. Been lots of fun so far.

As for radios and being in Cambodia, can you mail order from Hobby King? They have lots of good transmitters for very good prices. Most of my clark and IBUs run on a $25US, 6 channel T6, and I also have a couple of the HK6S radios, along with a 9X and a 9XR Pro and even an i6. I have lots of videos of all this stuff at my youtube channel, here
https://www.youtube.com/channel/UCH8MHc ... J6KcUvfflQ
If you're looking for specific info let me know because I also have a lot of unlisted videos.