I have, as I say, not removed that gasket. I know sometimes that they can be reused if you are very careful but that is not always the case.
If it is inevitable that you need to remove the gasket then some sealer could be used as an alternative. If not I would steer clear!
However, I own a Harley Davidson and parts in the UK are not always cheap or readily available but through forums such as these I have managed to get people to send me small parts such as oil pan seals etc. which in the UK (if available) are about £2 but in USA you can get 10 for that much - I am sure someone could help you out if you were to get stuck!
I have always fitted a magnetic drain plug - they are a very good indication as to what is happening with the engine and an effective way of removing small particles especially when the bike is new and being run in.
A quote I have always lived by when I am not sure whether to dismantle something or not is - 'if it ain't bust - don't fix it!'