My TP and ONT are located near the TV together with the cable TV set-top box, so I pulled a LAN cable along the walls from the TP to my router which is situated near the entrance of the bedrooms.
It's really easier relocating the router than the TP, since you can do the LAN cabling yourself.
Laying cables in your case might be more difficult because you need to lay it past the entrance of a room, so I'm unsure whether you should pay a bit more to relocate the TP entirely instead.
I'm on 100Mbps and video streaming is quite good save for Twitch (which is solely for streaming of video games, which you probably won't be interested in). Torrenting speeds are also quite decent.
In my opinion, unless you are a heavy user, 100-200Mbps should be enough. A higher bandwidth plan does come with higher international bandwidth, though, if you use overseas resources very frequently. You can check
IDA's own readings here (scroll to the bottom for US servers) or search for SamKnows reports for comparisons.