Yep, it's an MG42.
Properly de-milled, of course, as our Government doesn't like to see real weapons in the hands of law-abiding citizens.
Acquiring the inuforms used to be difficult, but these days you can basically order everything on the internet.
However, there are significant differences as per quality and levels of authenticity.
In our unit you don't get away with altered ex-Swiss or Swedish army stuff, ex-BGS helmets, etc. Custom reproductions are the standard.
I think you can see this in the pics pretty well.
But it's not only the clothes, you also have to radiate some of what made them the men they were back then.
If you need some Splittermuster 31 for your boonie, I suggest you buy yourself a reproduction shelter quarter through Ebay or one of the reputable dealers (just let me know if I can help you locate one). This will give you plenty of material for the hat and maybe another sewing project or two.
If you do it cleverly, you can even make yourself a reversible hat, because the shelter quarter has a darker side and a lighter side.