Hey valenky, welcome to the board. Moncha pretty much answered all your questions.
The only thing i want to add is about painting the cladding: looks like it's not a good idea to paint the cladding, I recall a few people who've done it saying that they have to re-paint periodically because it starts to chip. However, a few people have had success applying line-x. A member here recently did a first color version of it:


PS what does "valenki" mean?