HW30S is a good choice. Safeties obviously should not be relied upon anyways.
My Dad's reluctantly decided to sell his TX in favour of something lighter and easier to cock, so we went though a few in my cabinet. The old pre-war BSA underlever - an "L" (light) is especially suitable. The HW95 (full length) was also fine, but the 99S was toughter to cock.
I also picked up an old meteor Mk1 the other day at kempton - absolute bargain, decent trigger (many are not so good), stripped and relubed; only 7 FP just now, but so accurate at 10 yards with opens I have no intention of changing the spring.
Always looking for any cheap, interesting, knackered "project" guns. Thanks, JB.