Bit spendy for me!https://www.eastwood.com/eastwood-pneumatic-rotary-removal-tool.html
You should try one of these. This really is so good for removing paint and rust. Also has the cheese block for scratches and glue.
So impressed was i with the screwfix prep wheel i remembered to take a photo 3 minutes after i started on the worst bit
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And in less than an hour (broken up by nagging phone calls)
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Admittedly its only half the tank done but apparently she has been telling me for a month i've got a party to go to in an hour