Winston you don't have any option in what service you get. In the UK if you really need it you will get the grade 1 service what ever you declare. Because you have an engine out you are down to 50% power so it really dosn't matter what you declare. ATC will give you the full Monty.
Sorry for highjacking but this is my point if you are away on a training exercise and fail to restart an engine its the full wack.
And you will get a bollocking if you land with a feathered engine with a 10k houred instructor onboard who doesn't care.
MJ