T5 Swap dust sheild question

Im doing the T5 swap in my 67 (with a 302) which came from the factory with a manual transmission. It currently has a later model C4. The dust shield between the bellhousing and the block doesn't cover the bottom of the bellhousing and the flex plate is visible. I assume its from the original transmission.

The question is, do I need some other dust shield for my late model bellhousing that is going in in with the Swap?

The follow up question is where do I find one? Or is it just as easy to make one out of sheet metal? If that is the case, is there anything fancy I need to do other than cut a hole for the starter.

Thanks in advance.