[TLFisher]

Just how far are Christians from practical oneness?

I think in the local churches, brothers and sisters vary. Some receiving according to Romans 15:7. While others maturity in receiving is limited to LSM publications.
In my area where I live I know at least 4 assemblies (the local church included) that stress home meetings.
One of the brothers in the home meeting I meet with from ERCC lives on the same block as a local church home meeting I had met with several times. This brother can even describe which house. I have no doubt he and his wife would be received. However with a reciprocal invite, would the response be eagerly accepted? We're currently going through the Gospel of John accompanied by RC Sproul's commentary on the Gospel of John. Would that be too much? Venturing outside what James Lee described as the "comfort zone".
If you're one meeting in the local churches and you feel you're in God's central move and such, sometimes you've just got to meet where your fellow believers in Christ are at. Even if it means "shaking hands over the fence". Impart your gifts to them and likewise they may impart their gifts to you.
Forgive me, but I harbor doubt and skepticism that oneness in practicality can be as a "two way street" in mutuality. My sense as a non-essential item of faith, the LSM publications become essential for oneness in practicality. What seems impossible, is possible with God.