I roto i te ao hanga miihini, tata kapi katoa ngā hua rapa me te kirihou a Arex i ngā momo taputapu, he iti noa iho ngā taputapu tāpiri, he nui hoki ngā hua whakarite, pērā i ngā hiri, ngā ngongo, ngā hononga kirihou me ngā wāhanga hanga ritenga o ngā momo rapa, kirihou rānei. Nā te rerekētanga o ngā hiahia o ia kiritaki, ka whakapau kaha tā mātou tīma hoahoa me te tīma hanga ki te whai whakaaro ki ngā painga ōhanga o te kiritaki, kia iti ake ai te utu pokepokea ai me ngā utu hanga hua, kia tiakina tonutia ngā taputapu pokepokea ai, kia tere ai te whakawhitiwhiti kōrero ki ngā kiritaki mō ngā piki me ngā heke o ngā utu rauemi mata me ētahi atu take. Hei tāpiri, ko te whakahaere i ngā taipitopito he hononga nui anō hoki i roto i te tono miihini o ngā hua rapa me te kirihou, he maha ngā hua rapa me te kirihou e whakamahia ana i roto i ngā taputapu tino tika, i ngā taputapu tino tika rānei, hei tāpiritanga nui ki ngā taputapu, ki ngā rauemi rānei, nō reira, ko te tino tika o ngā hua rapa me te kirihou te mea e whakatau ana i te whakamahinga o ngā taputapu tino tika me te whai hua. Mō ngā rōpū kiritaki kei roto i ngā whakaritenga teitei mō te kounga me te tino tika o ngā hua rapa me te kirihou, he nui ngā wheako o Arex ki te mahi i ngā mahi ratonga me te tautoko hangarau e pā ana. I taua wā anō, ka taea hoki e Arex te whakarato raraunga tohu, whakamātautau kounga, whakamātautau hua me ētahi atu mahi wheketere mō ētahi o ngā kiritaki o te kamupene hokohoko. I roto i ngā rā kei te heke mai, ka mahi tonu a Arex ki te whakapai ake i tā mātou ratonga me te kounga hua, te whakapai ake i ngā utu whakahaere, te arotahi ki te arotau hua me te whanaketanga hangarau, ka kawe mai i te tautoko pakihi me te pūtake whanaketanga ki ētahi atu kiritaki me ngā umanga.