This is the roof mounted adapter ill use to put the pole in after modifying plans, along with a clamp point 7 feet up higher too

https://www.amazon.com/gp/product/B01ETDZ3F0/ref=ox_sc_act_title_2?smid=A3TCXIBA125BM2&psc=1

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higher spot secure clamp

https://www.amazon.com/gp/product/B003D1QPHK/ref=ox\_sc\_act\_title\_3?smid=ATVPDKIKX0DER&psc=1