Did mine today and took a few (hopefully Useful!) pictures. Note:- I had to use a puller to remove the arms, never been off I assume. Removed loads of forest from the plenum chamber! Rather than struggle with the stupid (siezed in my case) plastic fastenings, heat up a flat blade screwdriver and melt a 'slot' in the top of each screw head, remove and discard. Replace with original body but black self tapping screws with silicon grease on them to help next time. Also use the grease on the black snap connectors along the screen edge when you have got them apart or retrieved them from the scuttle panel! Very expensive stuff the grease but is made for greasing window tracks and is great for that, if windows a bit slow. Use spray white grease with ptfe for the wiper rack and relubricate the worm drive in the motor with vaseline. Before assembly spray the copper pad and contacts with contact cleaner/lubricant. And yes, my Wife complains I squeeze the toothpaste in the middle too 
