Mercedes W123 welding and rust. Its not good

Ive been grinding away at the front corner of my Mercedes W123, chasing the rust, but its not going well. In fact its pretty bad. The tools I use to keep my wrecks rolling: Draper cordless ratchet wrench: https://amzn.to/39NvSmK Draper 80808 Heat Induction Tool: https://amzn.to/2KTrDYV Draper 3 tonne low entry jack https://amzn.to/2ZAbCRZ Draper 3 tonne axle stand: https://amzn.to/3okTWlJ Draper Impact wrench: https://amzn.to/2JSQhN2 Draper flexible head breaker bar https://amzn.to/3s4xqzi Draper under bonnet LED light bar https://amzn.to/3yuXCa1 Draper Pry bar set https://amzn.to/3fbYBEz Draper air sander https://amzn.to/3cnGAku Hit the Channel Member JOIN button and become a Furious Driver or help support the channel on Patreon here:   / furiousdriving   Furious hats! Hit http://paypal.me/furiousdriving its £11 for the black/red words or £12 for the grey or yellow with logo, including UK P+P (email for delivery elsewhere) LIMITED NUMBERS of caps - £15 inc P&P Check out my new Photography channel 'Click Bait' - https://bit.ly/2Xek1Y1 Post me stuff for Junk in the Trunk post bag section! Furious Driving PO Box 477 AYLESFORD ME6 9LE Furious Driving merch on Redbubble - https://rdbl.co/39KtkDY www.furiousdriving.co.uk for more