TMJ cure with veneers

I live in Canada. I have had a TMJ problem since 6 years. I have tried both the upper and lower splint and the lower splint is helping me quite a bit. I have been wearing that one since 3 months only. My dentist has now suggested that I go for the veneers treatment - cap all my teeth with porcelain and get the bite adjustment through that procedure.

The cost of the veneer treatment has been estimated as CDN $30000 to $40000. I find that to be really exorbitant and I want to make sure that this is what will cure my TMJ problem and straighten my bite.

Is there any other alternative treatment equally effective ?

Is this cost estimate a reasonable one for this kind of treatment ?

How long should I expect veneers to last knowing that my grinding habit wears down even my natural teeth ?

Thanking you advance for reviewing my question.

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