i think i'll try option 1c first. theres a 15mm gap between the rad and front panel so i'll take off the lower rad support, pop rivet it to the right, bend a new upper support bracket ( maybe cut & rivet the latch bracket onto it as well) and so check things runs ok before investing in an expensive custom exhaust job.
another issue i spotted is how to feed a filter into the turbo cos there's abso no space with the rad fan & coolant pipes in the way. dan mentioned kristian may have tried stretching some tights over the turbo but sounds like a bad idea