in terms of a literal match to you list, something like the zen saral - 2.2k, 55lb, class iii, 500w, 640wh, throttle, torque sensor, no idea if the brakes are any good, front suspension, looks ok.
priority current - 3.2k, 53lb, class iii, 500w, 500wh (good for more than 50 miles assuming no crazy hills or winds or >25mph speeds), torque sensor, hydraulic brakes, fenders, etc. integrated battery, looks OK but not great IMO. NO THROTTLE.
at the other end of the spectrum - you can pick up a vado SL on sale for $3k which is everything you list except the throttle, but a significantly lower power level, much more fun to ride :
specialized turbo vado sl 4.0 - $3k, 35lb, class iii, 320w, 320wh (50 miles totally doable if you keep the speeds in the 18-22mph range), torque sensing mid drive, hydraulic disk brakes, integrated battery, etc.
