Paint and Rust cleaning

[melhookv12]

Hi I need to paint the inside of my race car. There's a mixture of paint, rust and weld overspill that needs cleaning/stripping.

Do the abrasive angle grinder discs work well, if so which brand. Screwfix list a few. Nitromors ? Rust prevention solutions ?? DIY shot blasting ?

All suggestions greatly received.

I will either spray with aerosols or paintbrush it.

Thanks