The second to bottom pic with the bike in the background just needs the caption "Are you sure this will fit ?" to it
I once swapped a mini engine following the haynes manual....it had sat on a block of wood for 2 years. Me and my mate with very limited knowledge swapped it and it started first time....suprised the hell out of us...ran like a tracktor so i got an AA guy to come out and tune it to get me home so i could pop it into my normal garage !
Good luck !