Is that they will support those items with an advice line. Take their advice on which is most suitable.
Just a piece of advice, which will give you an idea if the expected positions of your 2 PCs will work as wireless connections.
Using a cordless telephone > put the Base Station where your Router will sit > Try the Telephone where the receiving PC is going to be. Although this is not infallible, if the telephone signal won't reach that point, it is unlikely that the Router will either.