New holding tanks for 78 Itasca?

[78BraveGuy]

Last weekend, the gray water holding tank fell down on the on ramp to the interstate.  The rear bolts that were holding the tank to the straps rusted/broke off, so the back of the tank drug on the ground for a bit until I could get stopped.  Needless to say, the tank now has a hole in the back corner.  I was wondering if anyone knows if Winnebago still makes or sells replacement holding tanks?

[Elandan2]

You can have new tanks molded by Winnebago. You will have to purchase them through a dealer. They actually come with the pen nuts installed, the drain has to be opened, but it is ready and the holes have to be cut for the incoming drain lines. I have bought more than one from them. 

[Oz]

Try these:

https://www.icondirect.com/waste-holding-tanks/

http://www.incaplastics.com/index.html