Bird minibike forks Bird Engineering Sears/Montgomery Wards FORKS WANTED

OK guys,this is a Bird I built about 8 or 9 years ago. I am in need of forks,or even dimensions would work(I can build them myself.)
Here are some pix. This one originally had a Mc 49,but I installed a 6.03 Mc chainsaw engine,it did come to life then! MVC-001E.JPG MVC-008E.JPG MVC-003E.JPG MVC-003E.JPG MVC-007E.JPG MVC-009E.JPG