Hey Sam, yes we assume this is for the much needed repairs at Little Caliente. Unfortunately my circle of friends does not include any pool repair people or plumbers, But I would also suggest that you put your request on some other websites. I think there might be some people at Soakers Forum that are knowledgable of this type of thing. Maybe you have posted there before, but it's worth a try.
We will leave your post up on this site as someone may respond. Good luck. PS did the Forest service give you the go ahead for the repairs?