Well it all arrived today, a grease gun, a spray gun, a tyre inflator, another gun which I haven't figured out yet, my rattle gun, and the compressor - total cost £160 including the £25 express delivery.
Verdict: an hour later, every nut and bolt I could find tightened, tyres pumped up, covered in PTFE lubricant from not opening the bottle carefuly enough, and off to buy some black paint for my wheel arches, it seems pretty good!
Stupid grin on my face, smell of oil everywhere, and a new toy!
To be honest, I havent had any really rusty old wheel nuts etc to test it on, but its coped fine with everything else!
Given the massive reduction that it's currently on sale for, I reckon it's worth the pop.