RE: Few new questions
All ARF's a different. But the LT 40 ARF will require you to install all the hinges. It really isn't hard though. You just put the hinges in the slots, get it lined up then you add the glue last and the hinges soak the glue up. If you are careful you will have no problem.
I want to build my first kit over the winter also. I got the LT 40 as a ARF for two reasons. I wanted to get some flying time before it got cold (I got it in the beginning of Oct). And, like you I thought it had to be perfect in order to fly right. I want to emphasis that I don't claim to be an expert so take what I am telling you with a grain of salt. I think everything has to be pretty close, but not perfect. No plane is perfect that's why we have trims.
I, like you, am worried about covering it. I am not worried about it flying right, I am worried about it looking like crap when I'm done. I think if you get it attached good you shouldn't have a problem with it all coming off.
If I were buying the LT 40 now (November) and know what I know now, I would have went with the kit. But you mentioned you are getting mixed feedback. I think that is totally a personal preference you should decide what is best for you.
I love my LT 40, but I would be much more proud of it if I had build it.
The best of luck to you,
Wings,