exhaust studs and oil cooler removal

[bludclot]

in a masterpiece of no forward planning whatsoever instead of re-fitting my newly re-assembled forks i suddenly took a whole number of bits off the front of the bike.





one exhaust stud came out with the nut but the other 7 remain in place. i've double nutted another as seen in the picture but it doesn't want to move - any advice on how to remove the remaining studs? the far right (as pictured) stud must not snap as it's behind the frame bar and can't be drilled out!


and then there's the round thing at the bottom with a large nut on the front (i've seen it referred to on here as the oil cooler but it's not like a little radiator type oil cooler that i know) anyway is this a case of bending the tab back and unscrewing? and then will loads of bits fall out leaving me standing there staring at it in disbelief?


any help appreciated.