Here is the LUMIGON-T3-v3.2P.291.340.zip
I have made this from the SPFlashTool backup posted by meizuman on the 4PDA forum so thanks to him for this.
I have not tested the ROM myself so it's at your own risk.
The ROM is made to be flashed using SPFlashTool which you say your used to working with already.
Let me know how you get on.
Full ROM Flashed in "Download" mode with no issues to report.
It take's around 10 mins to boot to the "Welcome Screen" so please be patient.
I have not taken the rom any further than the welcome screen as yet till I install TWRP and root the ROM.
When flashing it maybe necessary to hold Volume Down (-) button to get the phone to connect with SPFlashtool. Once connection is achieved you can release the button.
I use the Linux Version of SPFlashtool and it can be a little buggy so these oddities may not affect others.
Other Notes and observations:
After flashing Magisk and setting up my phone as a "new device" I noticed that the google apps were not auto updating as expected but all were "pending"
I suspected Magisk had something to do with this so installed the latest versions of both and rebooted then opened the Magisk Manager app and bingo the google app's started to Auto updated.
So I now recommend to Always Use the Latest stable version of Magisk and the Magisk Manager app which can be got from the OP of the Magisk thread Here
look for Downloads
in blue and download the "Latest Stable" and "Latest Magisk Manager"
Notifications from Gmail, Calendar, etc etc were not coming through so tried all the usual stuff but nothing worked
Turns out the fix was simple in the end.
Go to /settings/Battery/ and Turn OFF
"Enable doze mode" which is on by default. You will now get your notifications almost instantly now.
The only real visual difference I have noticed is the Lumigon Launcher now shows the "Home" screen apps in full colour instead of Gray Scale also the google search box is showing on the "Home" screen by default.
I am on 3 UK network and was stuck on 3G so I had to go to /settings/Mobile data/preferred network type and toggle "4G recommended" a few times before it eventually switched to 4G from 3G. I have had this on other devices too so maybe it's a 3 UK thing as EE seems to connect to 4G from the very start.
I will add any further observations as I notice them.