Hannibal Roof rack issue

Guys,
I’m hoping someone out there in the ether can point me in the right direction please.
I have a Hannibal rack on my 110 Utility. I’ve noticed that at least three of the eight mounting brackets could do with replacing as the nuts are either worn, cross threaded or in at least one case the bolt is bent.
The bolts etc are welded to the bracket (see pic). I’ve spoken with Trek-Overland who inform me that Hannibal are no longer trading and they cannot assist re: spares.
Flea bay isn’t any help.
Does anyone know where I might be able to get replacements or would I need to find a tame engineer to fabricate some?

I bought some roof rack clamps for my Brownchurch roof rack from Brownchurch last summer. They are galvanised but I’m sure they can be T-washed and painted black to match. They were around £6 each plus VAT and delivery.

Thanks for that Knappster.
Hannibal have stopped trading although their website doesn’t indicate this.
Managed to source some (new) from LR Motors in Yorkshire.