Nothing ruins a hunt quicker than being cold, wet, or wearing clothing thats noisy, won't cut wind, and rips easily. Nothing ruins "after" the hunt quicker than seeing rips and tears in cheap clothing or having to pick burrs for an hour. My thoughts are the most critical piece of clothing is always the footwear. Nothing like cold, wet, and blistered feet to make a guy wonder why hunting is part of the curriculum and those factors play a part in what you wear above your feet too.
Contrary to popular opinion cheap is not cheap if you have to replace gear every year or two or dont feel like growing a beard while standing in the Returns Line at Cabelas and Canadian Tire so factoring in cost over 5-10 years should be taken into account. Then know that what you start with is likely to be sitting in Goodwill or a dumpster after 1-2 years anyways until you learn the value of hunting comfortably. I'm a big believer in Buy Once Cry Once but your mileage may vary.
The scent masking part makes me chuckle a bit. Walking or sitting dowwind of what you're hunting will solve that and it wont matter what cologne you may be wearing or what you're smoking at the time either. Lots of us have had animals sniffing our pee 15 feet below our treestand or in the scrapes we've made, and theres days I dont smell like I just got out of the tub or find myself destroying the ozone layer due to camp food, so hmmm. Watching the high fence TV hunters applying spray or rub ons is hilarious but kinda says it all about 80% of TV Hunters. Cant hunt for free without sponsors. Noise and movement are far more critical factors imo so dont run through the forest in bright yellow, whooshy clothing blowing a kazoo and you should be fine.
My tip would be to watch real hunters that spend a LOT of time outdoors in all sorts of conditions. Billy Molls would be a good example. 3 months per year in Alaska hunting will tune you into what is required for whatever mother nature throws at you.