Another Dragonite question

Yes

Yes 69%(giggity)is pretty good ivs for dragonite especially with good movset also good starting cp 1900 is only a little but less than what a hatched dratini would evolve into

Yes u should. After I have evolved 3 steel wings dragonites in a row, I have given up hope and decided to power up my 71% DT/OR nite.

Do it!! Moveset>IV

Yes. IVS are overrated in my opinion for daily play.