Wanted: Variable pump

I am looking for variable pump air rifles that exceed the 500fps limit. 
I haven’t found many new ones that fit the bill. The newer Benjamin 392S and 397S seemed like good contenders but I’ve read that the cheek rest is too high for comparable iron sights use. 
Models I’d consider are;

-Benjamin Sheridan 392 and 397 wood versions

• Crosman 760 Pumpmaster
• Crosman 2100 Classic
• Crosman 362 (.22 modern pump)
• Crosman 66 Powermaster (older)
• Crosman 1322 / 1377 carbines (pistol-based carbines)
• Crosman Drifter (newer multi-pump platform) 

I think there was a backpacker model too. Please contact me with any available. Must be in good, usable condition. Prefer not scoped ones