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This is really two separate issues, and it would be better to create two separate questions for them. As it is now:

• first problem: Invoking "make -j4 -l4" failed is not a full err msg. Please add the relevant parts.
• second problem: don't ever run ros nodes as root (sudo).

This is really two separate issues, and it would be better to create two separate questions for them. As it is now:

This is really two separate issues, and it would be better to create two separate questions for them. As it is now:

I then downloaded dependencies and made the files again, this just gave me a long list of errors ending with:

Invoking "make -j4 -l4" failed

This does not seem like a full error message. Please add the relevant parts, as without it we can only guess.

In general: cloning just a package's repository is almost never enough to successfully build a it. Please see Installing package from source in Indigo for the general procedure to build things from source. Note the rosdep install .. command: it will try and install all required dependencies for the package that you are trying to build.

This got the package successfully, but in trying the next step on the package main page

$ sudo -E rosrun libuvc_camera camera_node vendor:=...

Don't ever run ros nodes as root (sudo), it's very rarely really needed. See Rosrun as super user for an earlier Q&A about that.

As to the parameter problem: only private parameters can be passed on the command line, using the _param_name:=value syntax (see rosbash - Command line utilities - rosrun). Without the underscore, you're giving rosrun a remapping argument, which is not what you want.

Using a launch file is probably the easiest way to set parameters that are not meant to be private.