Graham,
Surprisingly, the FW300 is very straightforward to strip !
Some excellent video guides are here : https://www.youtube.com/channel/UCWL...AgPp2XA/videos
Dis-assembly : https://www.youtube.com/watch?v=X4MJsRTIx2I
Re-assembly : https://www.youtube.com/watch?v=OkkNDxn79aE
Have fun
Best regards
Russ