Have now fully replaced the gearbox oil and also the breather with a new one, the gearbox feels like its had a new lease of life, incredibly smooth!

I also finished cleaning, sorting/painting the under frame for now
http://www.flickr.com/photos/67024256@N07/6135481757/http://www.flickr.com/photos/67024256@N07/6135481757/ by http://www.flickr.com/people/67024256@N07/, on Flickr

http://www.flickr.com/photos/67024256@N07/6135478447/http://www.flickr.com/photos/67024256@N07/6135478447/ by http://www.flickr.com/people/67024256@N07/, on Flickr

Was still a bit filthy in those hidden crevices so got under with a brush and Gunked it thoroughly:
http://www.flickr.com/photos/67024256@N07/6136029056/http://www.flickr.com/photos/67024256@N07/6136029056/ by http://www.flickr.com/people/67024256@N07/, on Flickr

http://www.flickr.com/photos/67024256@N07/6135488443/http://www.flickr.com/photos/67024256@N07/6135488443/ by http://www.flickr.com/people/67024256@N07/, on Flickr

Finished painting/treating rust on the underneath:
http://www.flickr.com/photos/67024256@N07/6135484565/http://www.flickr.com/photos/67024256@N07/6135484565/ by http://www.flickr.com/people/67024256@N07/, on Flickr

http://www.flickr.com/photos/67024256@N07/6136032204/http://www.flickr.com/photos/67024256@N07/6136032204/ by http://www.flickr.com/people/67024256@N07/, on Flickr

http://www.flickr.com/photos/67024256@N07/6136033182/http://www.flickr.com/photos/67024256@N07/6136033182/ by http://www.flickr.com/people/67024256@N07/, on Flickr

Next I decided to paint my front beam from the slightly corroded/manky white to moondust silver:
http://www.flickr.com/photos/67024256@N07/6135479271/http://www.flickr.com/photos/67024256@N07/6135479271/ by http://www.flickr.com/people/67024256@N07/, on Flickr

http://www.flickr.com/photos/67024256@N07/6135479983/http://www.flickr.com/photos/67024256@N07/6135479983/ by http://www.flickr.com/people/67024256@N07/, on Flickr

http://www.flickr.com/photos/67024256@N07/6136026538/http://www.flickr.com/photos/67024256@N07/6136026538/ by http://www.flickr.com/people/67024256@N07/, on Flickr

http://www.flickr.com/photos/67024256@N07/6136043320/http://www.flickr.com/photos/67024256@N07/6136043320/ by http://www.flickr.com/people/67024256@N07/, on Flickr

http://www.flickr.com/photos/67024256@N07/6135496773/http://www.flickr.com/photos/67024256@N07/6135496773/ by http://www.flickr.com/people/67024256@N07/, on Flickr

http://www.flickr.com/photos/67024256@N07/6136039126/http://www.flickr.com/photos/67024256@N07/6136039126/ by http://www.flickr.com/people/67024256@N07/, on Flickr

http://www.flickr.com/photos/67024256@N07/6136037464/http://www.flickr.com/photos/67024256@N07/6136037464/ by http://www.flickr.com/people/67024256@N07/, on Flickr

Found out re-aligning the bonnet latch is a bit of a fiddle!
http://www.flickr.com/photos/67024256@N07/6136038336/http://www.flickr.com/photos/67024256@N07/6136038336/ by http://www.flickr.com/people/67024256@N07/, on Flickr

Polished the manifold shield:
http://www.flickr.com/photos/67024256@N07/6136041582/http://www.flickr.com/photos/67024256@N07/6136041582/ by http://www.flickr.com/people/67024256@N07/, on Flickr

And gave the engine a quick spruce up:
http://www.flickr.com/photos/67024256@N07/6135494381/http://www.flickr.com/photos/67024256@N07/6135494381/ by http://www.flickr.com/people/67024256@N07/, on Flickr