I agree. I think Conte has now got players for each key position from the list agreed with Paratici & Levy.
I suspect some were top, or near top, of the position list: eg Perisic for WB, Bissouma for CM, Richarlison for central & wide striker rotation.
Lenglet was not first choice, but once the likes of Bastoni & Gvardiol became too difficult, we signed an experienced ball-playing LCB which was another Conte priority.
Forster as GK2 is better than Gollini, and Association-trained.
Spence ticks the RWB & Association-trained box.
Now, Conte can take his time assessing the squad & their ability to adapt to his tactical & physical demands. The players left in London will be shipped out (either sold or loaned). The players in Korea will get a chance to stake a claim.
And, as you say, if a van der Vaart type opportunity presents itself, we have the cash to pounce.