98 Caravan Strut Tower Repair

I want to repair the driver side strut tower on a 98 Caravan.
It has a wheelchair lift in it and I'd like to safely repair it so
it can be put back in service.
I'd like to replace the entire tower but am having no luck finding
an aftermarket source.
I can find the caps, but no towers.
Does someone know of a supplier?
Thanks Carl