Nice scope Kris , you wont do anything wrong buying any of todays eyepieces that fall into your budget , your scope with its longish focal length will be very forgiving of any problems in the eyepieces you are looking at , Bintel , Andrews and all other suppliers will help , just Google .
any chance of a photo of your scope ? I have a 127mm I am building at the moment using an Istar 127mm f/8 lense thats on its way ,,
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Brian.