First of all welcome to the forum.
as far as one bing for sale in the UK i do not know.
Is it worth it . That is for you to determine.
From what i have seen the filastuder /winder kits are the most affordable on the market.
There are faster machines but cost thousands instead of hundreds.
Read and reread the filasruder page both Tims sales page and the forum here.
Be sure you are prepared to assemble such a kit. Tools and knowledge.
If you can not read a wiring diagram this kit may not be for you
The sales page states outut is 5 -8 hours per kilo. so the machine is a bit slow.
also you in the uk will need to supply your own power cord.
inventory and assemble the kit as soon as possible after it arrives. Wait 6 months and if something is missing you may be out of luck.
Soliddoodle 4 stock w glass bed------Folger Tech Prusa 2020 upgraded to and titan /aero extruder mirror bed
FT5 with titan/ E3D Aero------MP mini select w glass bed
MP Utimate maker pro-W bondtech extruder
Marlin/Repetier Host/ Slic3r and Cura