If you’re going to go to all this trouble, please do seriously consider pulling singlemode fibre instead. It is more planning up front, but when you’re ready for your next upgrade cycle, you can reuse the same fibre and change out the hardware on each end.
They are much smaller to post though holes etc too.
Why recommend single mode out of interest? I've just done some fibre in my house with OM3 because that's what I had, I couldn't really work out why you'd prefer one over the other for residential lans.