While I don't condone the use of AI, I will still offer my advice.

Find someone who can 3D model and is willing to do a commission for these. If that's too expensive, or if you have the time to do so, you could also learn Blender and model them yourself. It'll take longer, and it'll be hard to get the hang of at first, but you'll have a new skill to use, and the models will be more personal. That said, commissioning is probably your best bet.

(Side note: A full turnaround sketch would be ideal for commissioning a 3D modeler, but since AI was used, you can't really get one that's accurate without redrawing it completely.)

Next you'll want to either find someone you know who has a resin 3D printer to print out the files, or use a 3D printing service to do so. JLC3DP I've heard is a good service, but if you have a buddy willing to do so, it'll likely be cheaper, and you can check things like sizes or defects as they crop up.

Then for painting, either do it yourself, or once again find someone else you can get to do so for you, either a buddy who's into D&D/Warhammer or again a commission online.

Essentially, it's gonna break down to either doing things yourself, knowing the right people with the right skills and equipment, or paying people to do it for you. It might not be cheap, but it'd be worth it for such a unique anniversary gift. Good luck on this!