Dogmeat and ED-E missing

Hello everyone, I hope you're all having a wonderful day.

TLDR: ED-E disappeared after I couldn't take his initial recruitment because of Dogmeat, who also proceeded to disappear when I did try to have him wait at 101.

I got TTW working basically flawlessly much to my joy. There're just two small problems, which I'll preface with a story. The story of encountering these problems.

First off, started in FO3 and went over to NV. Before going, I told Dogmeat to wait in my house. No problems, except his pip showed up on the NV map. But I wanted ED-E; obviously I had to fire Dogmeat first though. I left Ed behind-- mistakenly believing he might end up around Primm or in the V&V Casino-- and so I began the long walk down to Union Station. That was my first mistake, for I have not found ED-E since.

But I wouldn't find this out until after I went to FO3 and had Dogmeat go back to 101 to wait for me. ED-E was nowhere to be found, but I had already made my second mistake because Dogmeat was nowhere near 101.

And so I'm left to my sorrows. ED-E is not in Primm (and I checked around the town fairly thoroughly, but notably I freed the town from gangers after I repaired and denied ED-E). Dogmeat is not near Vault 101 nor at the Scrapyard nor in my house in Megaton where he'd initially been made to wait.

No options are off the table. I just want my boys back, but when I call ED-E with the console it ends up creating a clone that follows every time I change zones. What do I do?

PS: is there a way to have both Dogmeat and ED-E in my party at one time, mod or editing a configuration or anything otherwise?