The garage getting it through the MOT is doing the welding. Apart from a couple of balljoints, the frame was the main fail. I guess it depends on the specific location of the rust with regards to structural integrity (and the extent of the rust) as to whether they can repair it with welding. I will definitely be sourcing a replacement subframe in time for next year, or the year after that, assuming welds don't last forever and rot will no doubt set in elsewhere on it, but this buys me time to get the correct subframe thank goodness. Thanks