Such a seemingly simple procedure, in fact, for a simple person who has no experience in handling films, when gluing can turn into a "marvelous experience", in the process which you will smell a lot of new words in themselves). At that time, such work can take only a few weeks.
In fact, this process, requires a person who produces installation, the utmost care, since even a small mistake, can become fatal, as a result of which, the result of all the work would be just awful (more precisely, a few rolls in the wind + try to destroy the slope). For 10 years of work, we learned to quickly and accurately perform their work, though this was not an easy path).
The things you will have to deal with for those who want to experiment: bubbles, broken windows, dirt and plaster, pigmentary plaques during desiccation, saws, broom, hair, lice, broaches, electrified clothing... These are the main advantages)))) and more than others!
Save time, money, and head nerve - trust the professionals!