100% get yourself a mule.
get on pre loved and see what’s available locally, prices have gone up abit lately (£50-80)
Cage - anything like this will be fine
Ferplast Cage for Canaries and Small Exotic Birds GIUSY Rectangular Bird Cage, Complete With Accessories and Revolving Feeders, Sturdy Painted Metal White and Red Plastic Bottom, 39 x 26 x h 37 cm https://www.amazon.co.uk/dp/B00PB5YERE/ref=cm_sw_r_cp_api_i_QJ2VSZWZ7C422NXX4RMC