So in a few days my new tank is hopefully going to arrive and i will fill it will the usual for a fish-less cycle (yes we can all argue on what the best way to cycle is but I prefer patience to fast and maybe destructive). Whilst waiting to cycle the tank I don't want to splurge on ultra expensive test kits to measure things like nitrates down to the nearest particle when I know for several weeks what the result will be. Are there any easy to use decent test kits (don't need to be too accurate) that i could possibly order to the UK?

TLDR: looking for easy to use test kits (NH4 , NO2-, NO3-) that don't cost the earth and do not need to be accurate.