When I see Isak being valued at 60m, Lewandowski 50m, Vlahovic 50m etc, 40m for TA doesn't seem that bad when we paid 35m for Mustafi and nearly 50m for Laca.
TA was amongst their top goal scoring forwards last season and could have a point to prove in addition to being a boyhood Gooner.
Not sure who we could get to fit the DLF role and be PL ready for less who is not already at a club amongst the top half, & I think Calvert-Lewin would possibly be higher priced.