There is a LOT you need to know about smoke systems first, otherwise, you could find yourself spending a lot of money on something that doesn't work.

I am using a great smoker that only cost about $12 US (that's 37 Kilograms to you Brits), but you need to know what type of engine to use, what type of pump, where to put an oil flow restrictor and check-valve, etc.

Do a search here on RCU for "Smoke" and you'll learn lots of good info.

BTW, here's a pic of my Skybolt with smoke.