Welcome to Router Forums N/a. I have to called you that because you haven't completed your profile, so it calls you N/a in the panel to the left of your post. Please do this if you plan to stick around. A first name or what you like to be called makes our responses much more personal, so please do this, and please come back to tell us more about your tools and progress. Many of us, including me, do metal working as well. I think you will like it here.
The Delta Unifence and Biesmeyer fences are considered by many to be about the best you could want, but the Unifence is no longer being made, so finding a used one is about the only way to get one. The Saw Stop fence is supposed to be pretty good. The Delta T2 fence is still being made and is quite good. Also look at one by a company called VSCT Very Super Cool Tools. Do some internet searches to find information about them. My table saw is a Delta Unisaw and it came used with a Unifence. I quit looking at fences and table saws after getting it. I don't think I need to look any further as it is more accurate than I need and my son will inherit it, so I have no experience with any of these other brands that I've listed, except for the Biesmeyer, which I use where I work. I first learned how to use a table saw, and use it safely, on a 50's Craftsman saw that my uncle owned. His fence wasn't the greatest either, but the saw was rock solid.
In many cases old tools are better than some of the newer ones, if they have been maintained or fully restored.
There are other sources of cast iron router table extensions that are much more reasonably priced. Go to https://www.ptreeusa.com/rtr_router_tables.htm
and scan down the page until you find them. Look for items #3040 and 3043. You will need an insert with them, but the price is much better. Peachtree Woodworking is NW Atlanta, GA, so if you live near there you can save on the shipping costs too. I've bought a lot from Peachtree over the years and they are a very good company to do business with. I prefer tables with no insert and like the Triton. My next router table will be a Marc Sommerfeld table with a Triton router and I'm planning to hinge up the table for router access and use gas springs to help lift it and hold it up while I make the changes. I like the Sommerfeld fence too. If you aren't familiar with Marc you should look at some of his YouTube videos and online catalog. https://sommerfeldtools.com/
His router table is extruded aluminum and quite large. I started with nothing more than a piece of plywood with a hole in it and a notched piece of 2 X 4 for a fence with C clamps to hold it in position. I used to attach it to the end of my bench with screws whenever I wanted to use it.
We would love to see pictures of your work, but until you have made 10 or more posts you will only be allowed to upload photos from your own computer. After 10 you can post links to photos etc. from other sources. It's an anti Spam rule. To add your photos, click on the "Go Advanced" button below your post. It will take you to a screen where you can attach the photos and if you go full screen and look way to the right you will find a button to upload them.They will be attached to the end of your post when you click on the "Post Quick Reply" button.