Unfortunately nope. I'm still on my Jagdpanther build and a year ago or so I had to have the periscopes for it. Ouch... and there was nothing else I needed at or in the near future.
I even checked ETO Armor and Forgebear for you and saw nothing.
Just how bad did it turn out? Can it be rescued any? I managed to get mine on the first try... small cuts and the hatch was hallow so there was some filling but it did avoid the $75.00 expense.
Let me know if I can help.