The simple answer is no ... don't be a fool. The N6 & N7 broke many who were very successful with L's, G's, CII's, C's, and A's. Actually harvesting is a mere 5% of the groundwork. You must be a politician, mother, father, manager, mechanic, psychologist, rigger, welder, mechanical engineer, electrical engineer, magician, and weather lucky. The expenses are murder ... fuel, tires, oil, parts, insurance, wages, meals, interest, lodging, fees, permits, and 1000 more. You need support equipment, service truck, pumps, tanks, welder, torch, fire extinguishers, compressors, tools, parts, roller chain, sickles, spare tires, oil, filters, bearings, springs, combine trailers, header trailers, pickups, trailer house, and 1000 more. You must be 10 places at once. You must not let your help ruin your reputation. You must watch like a hawk for unsafe situations. You must treat your customers crop as if it was your own. You can't back over augers, exit quonset huts with the bed up, turn too short and knock down light poles, leave truck stops and knock down signs, break the law, have your help break the law, go too fast, go too slow, be broke down, have drivers get lost, back into the farmers new pickup, and 1000 other things. You must be able to convince strangers you are the man for the job. You must pay everyone before moving on. Again ... don't be a fool.
But ... if you are ridiculously tenacious, fearless, not affected by stress, don't mind debt, and damned determined, go for it.
My grandad started in 1945, sleep under the bed of the truck, baths in stock tanks, combine atop truck with header atop the cab, the whole shebang. I went for 15 years back in the 1980's till graduating with masters degree in engineering. My stuff was old but looked and ran like new. My grandad told me I was a fool, and I was. But we both knew there is no cure for the desire to thrash wheat with a Gleaner. I still have one and farm a whoppin 65 acres, but the day I cut it is the best day of the year.
Seek better opinions, but I'd steer clear of the N Series.