Sunfish
If you are an SAAA member, go to the SAAA website and read the Kitplane safty articles then buy the CofA package and study it. The process is no more daunting than the build.
Test flying is a new ball game. Just being aware of the difference between your aircraft and a C152 is not enough. Have you done any serious unusual attitude recovery training? Do you know the stall characteristics
of your aircraft type? Have you done any slow flying just above stall speed recently? Have you had any aerobatic or at least incipient spin recovery training recently?
Initial operating limitations will likely exclude over populous areas and any future operations would be part of the Phase 2 approval. Read CAR 262AP