thanks for all the info took it to garage and he said i shouldnt worry about it until the mot which is next year but i told him i was concerned as i dont want the whole car to rot he advised me to go to a welder place which i did he said he would look at it thursday for me i asked him how much is it for a full replacement sill he quoted me £60 labour each one and 20 each for the sill itself so altogether £160 for both sides but odviousley this could be more cheaper if it isnt as bad as the whole sill rotting

i dont think its too badly priced as regards to looking into how much work is needed to replace the sills itself theres a few other bits of rust which i have grinded and treated with rust killer hopefully after this crap is done with things should be better as i dont want to part with it travelled 160 miles to pick it up and dont fancy car hunting again