What do you want to know?
Converting an autococker to pump is simple, identify the right type of autococker for the right pump kit, remove the 3 way assembly and cocking bar, attach the pump kit and cocking bar
Usually done with mech trigger autocockers but can be done with e-cockers
The best price was 'team hooptie' pump kits, very cheap and low postage
(their website seems to have closed)
There are 'better' pump kits but getting kits to the UK other than the hooptie is pricey anyway