Personally i wouldn't bother with that ratcher crap or any 'value hunting' package sold in the backs of magazines. Most of it is cheap chinese rubbish with bad triggers, seals, springs, sights etc.
Personally i'd have a look at a reliable springer model... your should be able to pick up one for that money all be it in a 'well used' second hand condition (Weirarch, Air Arms, Theoban, webley, BSA) . Replacing the seal or a spring is a small cost and i bet it will out last a new chinese peice of shit!