You can find the installed packages sizes at https://openwrt.org/packages/table/start
Remember to include their "dependencies" if they are not already installed.
The packages themselves look reasonably small, about 20 kB. Probably another 200 kB for tc and the various kernel modules.
You might be able install them, but a system without any free space is asking for trouble.
You probably won't get much throughput with a 430-MHz, single-Ethernet device, and may end up crashing the system because of the limit of 32 MB of RAM. If I were to guess, and it's only a guess, I'd say that 50-100 mbps might be the limit, if it runs without crashing.
To free up space, you'd likely have to build your own image, removing LuCI at a minimum. My notes for an ar71xx build show LuCI adding about 330 kB to the build.
I don't know your urgency, or your budget, but you'll probably have a better experience with even an inexpensive new router. There are several that have tempted me in the US$20 range, but as I can buy a used Archer C7 for about US$40 here, I haven't yet bought one. There is a whole thread about inexpensive routers at
It's quite a long thread and I haven't looked at all the options. Of the recent posts, the ones that @RangerZ mentioned look interesting to me for the price. If that is an option, you might want to send him a PM to find out if he has personal experience with them (I do not own any of them).