Steve,
How about replacing the tail wheel shear pin !!
Good for a laugh
Re the firing order I was asked that question on my ARB P&W oral in Chancery Lane
The easy way to remember is in 3's
1,10,5 then decrease by 1
14,9,4
13,8,3
12,7,2
11,7,1
We had a 500 hour tappit check on the 1830 so you needed the firing order to bump the cam ring for the clearance check