I'd only be interested in Cunha if he was the replacement for Trossard as a utility forward. I don't think the following is realistic, but I'd bet a lot that we win a trophy if we ended up with the following on September 1st.
Wingers: Saka / Williams / Martinelli / Nwaneri
CF: Havertz / Gyokeres
Utility Fwd: Cunha / Jesus
6: Zubimendi / Rice / MLS
8's: Odegaard / Rice / Eze / Merino / Nwaneri / Dowman
RB: Timber / White
CB's: Saliba / Gabriel / Kiwior / Tomiyasu
LB: MLS / Calafiori
GK: Raya / Garcia
Sell: Zinchenko (15m), Trossard (25m), Vieira (15m), Lokonga (5m), Nelson (10m), Tavares (12m). TOTAL: 82m
Leave for free: Tierney, Partey, Jorginho
Buy: Gyokeres (60m), Williams (60m), Zubimendi (60m), Cunha (60m), Garcia (25m), Eze (55m). TOTAL: 320m
I think I was probably a little conservative on the selling values so maybe we can get closer to 100m for the group. I have a hard time believing we would bring in 6 players this summer but like I said, it's probably not realistic. I would love this strategy though - addressing the CF and winger concerns with Gyokeres and Williams while bringing in two versatile, PL proven players with attacking X factors in Cunha and Eze. I'm with @CPM that unless we are signing Isak, the CF we sign will likely be rotation with Havertz and not his replacement. Williams can push Martinelli for the starting LW spot as well as provide quality rotation/depth for Saka. Cunha can play across all three spots and be an impact bench player to bring in when we need a goal. Eze can play both 8's and provide competition for Odegaard next season, as well as some individual magic that we need to get over the hump in the latter CL matches. Zubimendi takes over the 6 spot with Rice and MLS providing depth (this would be a bit of a depth concern for me but I'd rather invest in the attack this summer). We could likely get away with just bringing in one of Cunha/Eze but I love the idea of bringing in both. I'd also be fine with Mbuemo for the utility forward and Damsgaard if we need to look for a cheaper attacking oriented 8.