Right my heater matrix has burst in my FRST i have removed the dash and undun the nuts but now i am having trouble undoing the 2 little screws that hold the plate on under the engine bay where the pipes come threw

i cant seem to get anything down to undo in i cant even get my hands down if i do i cant get the screw driver to turn as its that tight of space

any ideas or will i need to strip all the inlet manifold off