Update: So I ended up canceling my online order that I placed last week. I've been checking istocknow.com and apple.com to see if they have the model I wanted in stock. Indeed they did, however it was a hit or miss. Unfortunately I cannot reserve a phone because I have reached the limit of reservation that can be made per customer, which is 3.
So today morning, I checked, they had the one in stock, being that I can't reserve, I occasionally check istocknow.com, around 9 am, it shows not available. Around 4 pm I check again just to see if they had in stock, and they did. I quickly drive to the store and luckily I was able to grab one. Apparently I took the last one they had in stock. I guess I got lucky. Either someone who placed a reservation changed their mind and decided not to take it and Apple decides to put it back in the inventory, I don't know. But either way I got lucky.
6S Plus 128 GB Space Gray, sim free. TSMC chip (not that it really matters as I don't care which chip I get). So far I am satisfied. Now time to go return my 64 GB sometime next week before friday.