RE: Guillows kit question??
I would tend to agree with Dsegal that it would not be worth the hassle. BUT it depends a lot on why you are considering it.
If you're thinking is: "I am building this plane, what would be the additional effort involved in converting it to RC?" then it's not worth the effort.
If you really like the Sopwith Camel and would like an electric RC version of it, this wouldn't be the easiest way to go about it.
If you just like a challenge, and have decided that you want to convert this plane to RC, and you find the time spent doing so to be enjoyable, then go for it. Most people will think you are crazy, you will spend way more time and money than the finished result would justify, but if it gives you personal satisfaction then it is worth it.