Hi, very impressed that you've got a brew fridge for your first brew! That's something I can only aspire to! I'd never get one up the loft ladder to my "brewery"!
I did a thread a few days ago reporting on my first still, also bought from lovebrewing (did you go to the shop or was it online?)
viewtopic.php?f=13&t=4693The TL;DR of that is you'll be fine with what's supplied with the still - you'll probably get better results from kale etc but do things in small steps, you'll learn a lot from the first run.
Don't panic when things go wrong (they will); the whole process [of brewing] is more forgiving than many people think.
Do make sure you follow the process outlined here:
viewtopic.php?f=13&t=1216Under no circumstances follow the rotten instructions supplied with the still. Double distillation is required for drinkable results (you'll be able to verify this after the first distillation - that horrid smelling muck is what the instructions would have you end up with!)
Good luck!