Could always wire up as some modern cars are with a 5/21 watt in with the 21 watt becoming the fog and then wire the original rear fogs as brake lights, I've got a set of these to fit but TBH haven't even opened the box yet so don't know whether the red (lamp) (lights)(bulbs)
have 2 terminals to operate the 2 filaments
Oh your fog light needs to be a min of 100mm from your brake light so using one of each nice idea as it is won't sadly work,
the rear reflector forms part of the cluster with the tail light behind.
Steve, I seem to remember Dave Speedy having a similar problem when he fitted to his 6a, remember we commented at the boggin that night.
SE4c rebuilding. SE5a similar it seems!
SAAB C900 2 door, Alfa Romeo GTV twinny
Scimitar SE4 SE4c SE5 SE6b Austin A35
High Peak Noggin Secretary & general dogsbody
www.high peak noggin
If things are going well with the rebuild you've missed a part out