I’d pass on the Reid; but not because it is a 26er.
Unfortunately you’re in a tough spot. Used bikes are generally over-priced, and you usually need to do some work, and with Bikes Direct, you need to be able to work on a bike.
Our son wants to get a better bike for his wife. I told him to keep an eye out, but a year or two from now a lot of the bike boom bikes will be on the market when people end up not using them.
John