Playing with the SK nomograms reveals having a G4+ as the primary tumour as the largest risk for biochemical recurrence regardless of staging.
Going from a T2 to a T3 adds very little risk for G3 +3 and 3+4 tumours.
Adding T3 for G4+ increases risk from 40% to 20% chance of being BC free at 10 years.
PSA level does not seem to change the outcomes much I guess because RP would not be done where there is any chance of detectable metastasis ie >20.
Add you PSA results to your profile as it helps the commenters