Toyo 4x5 View Deluxe parts

I'm looking for parts to replace the crappy plastic locking levers. Any ideas or suggestions? I've looked at Ebay.

Since you're in the US, start with parts@macgroupus.com. They were the US support for Toyo parts up until Toyo shuttered. They may still have parts.

If that fails, check with @B.S.Kumar in Japan. He has much of Toyo's remaining inventory, so he may have what you need.

If Kumar doesn't have it, he might help you find it. EBAY frequently has parts, but you have to check regularly.