1.5 or 1.6 roller rockers.

Wait wait wait. Why do those rockers look like they are guided? Meaning why does the rocker stick down below the valve? That isn't correct.

Also, if you need to move the rocker over, just file down the hold down. It ain't hard.

I just don't know why the rockers are guided.

Because they are indeed self aligning. Totally not necessary.

No offense here to the OP, but you will have enough in those after you finally get them right to afford the rockers you say are "not in your budget".