My CTC-16XL Project.

[Electronic M]

I'd make the shield before worrying about the alignment... You would be surprised some of the wacky problems removing a shield from a working set can cause.

It ain't terribly hard to make that shield out of sheet metal with hand tools. Photo copy the template, cut out the template and trace around it on to a small piece of sheet metal (most home stores have 1sqft pieces of sheet metal) and tape the template down to the metal clamp the metal down to a piece of wood you don't mind drilling into and drill through the hole marks in the template. On the square can holes drill the biggest round hole through the center as fits in the border and file out the corners to get square or if you have a rotary dremmel use the cutting wheel to cut the can holes instead of the drill. Once the holes are done cut the outer edge you marked earlier out with tin snips. File and or sand and Sharp edges off pound any warps or dents flat with a hammer and install.

If possible use a soft metal like aluminum or copper... I've made stuff like that out of sheet steel and it can be a bit of a pain to work with. Also wear thick canvas work gloves so you don't cut your hand like I did yesterday.