Personally, I wouldn't focus on a striker unless you go for a cheaper, talented young forward like Sanogo, Lukaku, Belfodil, etc, as Pavlyuchenko is amazing on the game and you can always use Keane and Defoe as a different lone man option. Honestly if I was you, I'd look to improve the RB and LB position and a AML and AMR. The team is very, very good!
you should definitely be signing oscar cardozo and jermaine defoe as poacher to him (Target man attack)... put bale left mid VDV ACM playmaker and you're go
Really no need to sign any strikers for Tottenham in the first seasons, perhaps some young talent but no starting striker since thay have plenty of quality in Defoe an Pavlyuchenko.