Kev - pls keep us updated on progress mate - piccies please
Oil filter: K+N is nice, built in nut for easy fitting: M&P are well cheap.
Plugs:
http://www.sparkplugs.co.uk NGK
Std Copper - DPR8EA-9 £2.42
Iridium - DPR8EIX-9 £6.84
Also:
Dunno if they are any good but I now have TWO sets of fork springs available after getting my forks professionally rebuilt. Free to a good DesmoDue home.
Frank