Wow !!
I was expecting the thread to be brushed over as trivial ... so such a response is fantastic, thank you everyone !!!
I ended up going to Hobbytronics in the end.
I got almost everything I was looking for in the one place, and at what I thought a good price.
Admittedly, I am sure there's someone in China cheaper, but I really want to support UK business where I can, so that China doesn't become our only option in another 10 years time !
(plus, I am impatient !)
Thank you to all suggestions, I've bookmarked those others so will be revisiting them again !
This is the oil that will hopefully make my projects a lot smoother in the future