nitromors will shift it more than likly, its great stuff, dont get it on ya hands as its a acid, and if you drip a bit on ya paint work, you got i would say about 2 seconds if that before it will affect it, and within 30-40 seconds you could wipe it off to bear metal, so if you use it, have rubber gloves and safty glasses.
and be warned, rubber washing up gloves will give you about a min to min and half before it eats through them if you get it on there.

anyhow, why you wanna take it all off?
if i took it off, i would give it a prime, them a good few coats of a stone chip and you can piant over the stone chip

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