Hi Guys,
When recently replacing my crank sensor I jacked up the car in the wrong place

and it seems to have pushed up a load of rotten sill.
Both sides look gammy. Sorry about crap pics will take some better ones will SLR soon.

I am about to do a load of work myself (Outer CV Boot, Inner CV Boot, Ball Joint etc) but before I shell out on it all I wanted to know if firstly this rust on the sill is MOT failure? It is no where else along the sills and seems to be where its been jacked up over the years and water crept in.
If it is a failure (although not within 30 cm of anything I can think of) how easy are these to repair if I take it to a welder?
Thanks Guys