There is oil in the fuel anyway so if it is used daily it wont hurt not to use the after run oil.
I would stock up on plugs more than anything,they don't fail often but you can get through 1 or 2 during break in due to running the car rich,also when one does fail it is annoying not to have a spare,I always had at least 2 spares at any one time.
You only need one threadlock really as well,aren't there also cheaper nitro starter kits as well as the HPI one at £16.99?