Luxery Vinyl Tile - trimming the master bedroom doorways

I've got the entry into the master bedroom, entry to master bath and entry to lanai to do some sort of final trim out.

 I'll start with the master batch entry since that is looking the most tedious (and was).  I'd hate to estimate how long it took to do the 3 pieces of LVT and add some additional porcelain tile in the bathroom doorway.  

I'm going to leave a 1/4" gap and try to caulk it nicely as a first attempt (but not last caulking attempt).

Here is the additional 2 rows dry fitted in the doorway.

 

I still had some pre-mixed mortar which surprissingly turned out still usable.

 

And I had a mostly full bag of dry grout left was well from the bathroom install.

 

Here I have it mortared in.

 

And now it's grouted.

 

And the last 3 pieces of LVT cut to size and trimmed to have an even edge along the porcelin tile.

 

I bought a tube of Keracaulk.U - Biscuit which on the tube looked like a good match but when used it was WAY to light.  Now I'm trying to figure out what color/type caulk to use in this last seam.  I know some folks recommend grouting it instead but I'm not sure how much expansion I might see with the LVT even though it is glued down. I can always go back and put in a T-moulding if this turns out to be a poor choice.

[edit 2021/5/20] I had ended up finding some gray caulk which matched. Looks better but wish I had filled it a bit higher.

The final result for the bedroom/bathroom transition.

For the entry into the master bedroom, I'm taking the original molding and just adapting it a bit to work better with the LVT.  Originally, the carpet side of it was a vertical of ~ 3/4" which is way too tall - someone would be tripping over it. Here is the before picture.

 

Here is an after picture of running it through the router table with a 45 degree bit. I'm hoping this will reduce the chance of catching a toe on it.  I sanded it up and just need to find some new stain of a similar color.

 

 

I had to experiment with stains a bit but I think it came out ok.

 

 

[2021/05/21] And the final doorway - to the lanai.  Still thinking on it.

 I laid some of the LVT under it for now but I'm still working out a final plan.

 

I'll probably end up getting a low threshold and maybe something to trim out the outside edge a bit.