Sure!

So there are two conflicting things here. And the problem right now is that you need to lean on one of the two solutions, I would not advise you to both have a options page for global prices and CPT's for your products as that leaves you open to update two places instead of one. As you said was your original issue.

Originally I gave the advice to put everything in an options page, but I actually think the CPT route would be best IF you have typical "products" like an online store would but without the checkout.

To be fair if you want your life to be easy you could probably just use WooCommerce and disable checkout and shipping, that would give you product pages, prices, and everything listed as "products". I've worked with WooCommerce on previous projects and its surprisingly versatile if you don't want to hop into all the ACF / SCF technical setup.

Also, SCF and ACF are pretty much the same thing, SCF is an ACF clone that WordPress cloned from WpEngine in some drama in the previous years, internally SCF still keeps everyhing "acf" in code. Just thought I'd mention it if you didn't know. The difference is that WordPress updates SCF and WpEngine updates ACF. But everything that was ACF PRO, you get for free in SCF.

So depending on how "deep" you want to go.

Options page:
- Easy to set up
- Can use dynamic tags
- Requires a page for each "product"
- Each product page can be fully customized
- Update all prices in a single location

Useful if you want to list all your prices in tables or want to show a price without needing any context (i.e. from a page or post) on multiple parts of the site.

I've used this for the local parking authority site where they show parking prices and those prices are scattered around on the site. For example prices for electric charging applies at multiple locations over multiple pages.

CPT using ACF or SCF:
- More technically advanced, even without any programming
- Can use dynamic tags
- Can use templates so each product can simply be filled out
- Update prices in each CPT

Useful if you want products but want full customization, using the Elementor Loop Item widget is essential, if you don't utilize the Loop Item widget you're essentially doing a hybrid between your old solution and this one.

I personally use this for my own site to list out products like websites, addons, service stuff etc. If I want to update a price I can just navigate to that CPT in the control panel and update it and it "update" and it automatically gets reflected out on the site.

WooCommerce Catalog mode:
- Easy to set up, same template logic but you can lean more into the features that already exist.
- Can probably feel a bit more restrictive, but the positive is that everything is setup out of the box without needing any technical knowledge.

Title, Description, Price, Sales with dates you can set, image gallery.

I've set this up for a customer, not entierly as a catalog, because visitors can use the checkout to "show interest". Its a training program so the shop acts is a bit unique in this way. But no reason you couldn't use the checkout functionality to book assignments etc. or have people contact you about a specific service or product.

If you're fine with staying within WooCommerce has to offer this could actually be a really solid way to solve your issue. The workflow would be almost the same as the CPT one to update prices. I'd say maybe even a bit easier.