It is definitely possible to make him a firefighter costume. I have seen costume patterns that include firefighters, but with the cost of fabric and notions, you could probably buy him a costume, already made, for about the same price.
You can create your child's costume with out being an amazing sewing machine. Here is a great article on how to create a fire fighter costume with out sewing. http://stopdropandblog.com/2009/10/13/how-to-make-a-sew-free-firefighter-costume/
Police officer Nurse Doctor Firefighter Soldier Maid
Yes they do. http://www.nextag.com/fire-fighter-costume/shop-html This website has a lot of choices for you to choose from. I hope that you will find what you are looking for.
You can purchase a kit for a renaissance costume. A kit would be cheaper and would include the costume plus accessories.\
some are made of leather, cheaper helmets are made of composite materials.
The only stores that would sell such a costume would be the bigger Halloween stores. You could also go to a fabric store and buy a pattern and make your owm. would probably cost cheaper to make than purchase.
Not unless you served in the military as a firefighter. Civilians don't make veterans.
Weather can affect a firefighter because the wind can make the flames even bigger and it might burn them and also if there was lightning it can cause a fire and make the job of a firefighter even harder.
You can buy fabrics from Walmart. They are cheaper and not too expensive to buy, which is perfect for a costume that you will be wearing only once a year.
How much does a firefighter with a four year degree in firesciences make a year?
35,000?
How to make a l4d2 jocky costume