In about to do the same thing. I ordered the oem filter and oil off Amazon.

HONDA 15412-MGS-D21 ELEMENT, OIL FILTER https://www.amazon.com/dp/B00I87DQK8/ref=cm_sw_r_cp_api_i_PTJVPFW7T7Z4JXR6YB53?_encoding=UTF8&psc=1

Honda Pro GN4 Motor Oil - 10W30-1 Gallon/- https://www.amazon.com/dp/B00NO0QZMU/ref=cm_sw_r_cp_api_i_521DX629NABSK6X2M85D?_encoding=UTF8&psc=1