So far, I haven't seen any good "clues" for this gent. He would do well to place his voltmeter at the 2 ignitor leads and see if there is 120 volts there when the dryer calls for heat. If so, the ignitor is bad.
Sir, before you bought the high limit, manual and whatever else, did you first ask a pro what the problem could be or did you just start buying parts? If you go about this the right way, it will save you hundreds of dolllars, including replacing the dryer.