Looks good man. Definately git rid of ngons. Tri's are not alwas evil and can not be avoided sometimes. Better a Tri than an ngon. Ngons do weird stuff when sub divived and don't render well either.  Just do a little cutting and conecting and get rid of those ngons even if you do make Tri's.  It's kind of like solving a puzzle sometimes you may have to do temporary steps to get in a position to make the real fix. If that makes any sense

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"The true sign of intelligence is not knowledge but imagination".

Albert Einstein