I totally agree with Tom. IBU2 is the way to go. It supports Tamiya recoil and should be totally plug and play, but you might have to change a plug or two. Even that requires no soldering, just crimping in new jst or futaba J plugs.
I also doubt you'll save much by purchasing from Canada. Shipping from the UK is $24, from Canada will probably be around $22, so I'd rather deal with Ian than an unknown, but for someone that's never dealt with Ian it may not matter. I just like to stick with what works, and I know Ian's customer service is almost as good as Erik's (and that's really saying a lot). Not to mention that right now the dollar is strong against the pound so that also helps.