BT99's are about as solid of choice for the money as you can get. My only issue with them was they seemed to kick a bit harder then other singles I shot so if a person is recoil sensitive I recommend shooting one before you buy it.You should be able to find a bt 99 used for less than that
The one I shot, which belonged to my trap shooting mentor, had a Mercury shock absorber. Between that and shooting shells going around 1000 fps, recoil was minimalBT99's are about as solid of choice for the money as you can get. My only issue with them was they seemed to kick a bit harder then other singles I shot so if a person is recoil sensitive I recommend shooting one before you buy it.
Probably the softest shooting trap gun I've ever shot was Remington 1100. If you can find one of the 1100 trap models that's in good shape and has been taken care of that wouldn't be a bad choice either.