Have you considered MTL vaping ?
You will still get loads of flavour and should drastically cut that 250ml a week.
For making coils you may have some bits and pieces at home to give you a start.
What you need is.
Ceramic Tweezers
Pair of small screwdrivers 1 x Flat and 1 x Philips.
Pair of wire snips.
Sharp Scissors
Something for wrapping your coils, this could be Drill Bits, Screwdivers or what a lot of vapers use a coiling jig.
You can use a regulated mod to tell you what oHms your coils are.
It doesnt have to be expensive.
Good Luck