Please vet my idea - Pricing Page Optimization

I have been running a small digital design studio for a while, consulting both bootstrapped and funded clients on design. For one of the projects, I helped a client push their MRR from around 25k USD, to 60K USD with tweaks on their pricing page. I was able to push this further up by auditing their product and smartly introducing paywalls contextually.

I am considering productising this service to some degree.

Some prerequisites on my mind:

• Must have significant visitors on the pricing page (at least 1000+ a month)
• Should have a freemium version
• should have some validation of the product (constant sales happen every month)

My usual rate is 150 USD/mo, but I am considering how to package this better for the client to get value and me also to find it sustainable.

One of the ways that come to my mind is a productised template to follow which can be given away for X dollars, and follow up consultations that can be extremely custom to your product and thus much more expensive.

SaaS founders here:

1. Do you actively optimise this page internally once designed?
2. Have you consulted experts outside to improve paid conversions?
3. Do you think this is something is a problem for you, and you would pay for?
4. This is tough to answer, but do you think there is a dollar number which you feel you can budget for something like this? (I understand it may be a %, but an absolute value alongside can help me gauge value delivered to some degree)

Many thanks for reading this far, your inputs will be extremely valuable!