What about this Bell.
With the stroller attachment.

Bicycle trailer

I think the Bell trailers may be a rebranded Avenir trailer, using the clamp on hitch. It works well for ordinary bikes, but may need a spacer if you have very tiny chainstays. I suppose they never designed them to be pulled by a Colnago road bike

Bike trailer wheels are a bit odd. I prefer those that have a wrap around bar and 2 bolt attachment as I think they are much stronger, but apparently not as popular with the manufactures. The one sided attachment is quick. But, it means you would need trailer specific wheels. They also tend to have an outward dishing. Probably not a big deal to use dished or not.

Anyway, I'd just fix a wobbly wheel, although everything takes time. Will it even fit in my truing stand? 16" and 20" bike parts are cheap. The trailer you found looks like a quality cargo trailer, which tend to be a bit harder to find at a good price than the kids trailers.