There is no Oil Pan Gasket, so all you will need is some silicone
Looking really good though, same basic look my engine will have once completed
. Very well done, sir.
Good luck on your reinstallation, try not to scratch the pretty paint
EDIT: when you replace the flex plate, if you have not already done so, do the rear main seal. Might as well since you will be right there. (unless you completely tore the block down and/or did this already.