GoodGrief, one can go to 5250 lbs (2381 KG) with ease, just have the applicable FMS onboard.
A standard fuel load is 860 lb (390 KG) or 2.0 hrs, so I assume you have aux tanks?
I always fly with a large ski basket and get approx 125 kts, see the pics of C-FALM below. We'd expect a bit more speed than that when flying a clean aircraft.
All this power and speed, plus an initial rate of climb at or near 2,000 fpm (@55kts, and depending on alt and temp)
