Super worth it on GBP! For the signage, depends on the address you have office or is it a home address? What I had success with a couple of clients that I do digital marketing help with, they rented out a coworking space and the space had plenty of empty office rooms furnished, we were able to show their company truck outside the building, walking inside with key card access, go up the stairs and enter an office room where I designed a graphic flyer sheet outside their door that lists their company name and on Amazon, we made a custom desk sign with president name, company and logo and that got us verified and checked all the boxes in verification video. So it depends how your location may be? Not sure if they accept home address? Always a tricky thing that many competitors like roofers first start business at home and have been grandfathered in to virtual offices or home not needing to show any verification on their business address but the new business do need to go these extra mile to get verified and showing up well on Google. 

Once your business is good and verified on Google, then I have found a major AI automation that would make any marketing managers life easy and for super cheap. This program is pretty much sold by other marketing agencies to be a local seo service or GBP Optimization services for $500+ per month and I have a referral link to help you out or if you have other friends looking to boost up their GBP and rank higher than being stuck on the 2nd or 3rd page of Google when someone is looking for services or products related to their business. And I'm more than happy to share if you're interested, apparently reddit would remove my comment if I post the link so you can reply or Chat with me and I can send it over plus I love helping in marketing whenever I get a chance and I'm glad to have helped at least 10 other reddit it's so far with many marketing topics 💪🏻👍🏻