You might look to the Honda Z50 and CT70 for the brake rod too. The 50's use a clevis to attach to the pedal and on the 70's the rod is just doglegged through the pedal. Many on ebay.
The tail light is a very common PM tail light, just search ebay for "PM tail light".
You can check for a universal front fender at OldMiniBikes. The chrome front fenders are pretty close to the Toyoco. You'll need to fab an L-shaped bracket to attach it to the two holes on the front of the lower triple clamp.
Mini Bike & Go Kart Fenders | Steel | Fiberglass |
OldMiniBikes will have cables that should work too.
The tank will take you awhile to find, but they do pop up on ebay every now and then.
Nice bike! Good Luck.