You have the Nooelec Dish .. I’d use that.
Remove the nooelec Dipole & cut down the square tube and use it
to hold the Discovery Feed. ( you can use plastic, tape, etc to hold the Discovery tube in the square Nooelec support tube.
IF you pry out the lower square plastic plug from the square tube, you can remove it from the nooelec cable,
tap the black dipole holder assembly out the other end of the square tube and preserve the nooelec feed for further tests ..
The nooelec Dish works fine & I really don’t have room for another Dish 🙂
Alex