The CH-7 displayed is not a model but a flyable prototype, confirmed by 席亚洲 (part of the Shilao Guancha crew). There is no IWB and it's clear that the purpose is for ISR.
He also mentioned it in a livestream. This is also a good article on the stuff displayed at the airshow and I'd recommend a read.
Additionally, the paint on the CH-7 prototype is done by 约克 (
) and his company. He is someone in China's MIC and does a podcast with 西葛西造舰, but he's not nearly as knowledgeable as Shilao and co and has made many questionable comments on things he's not familiar with.