First of all: the entry limit for a GedCom file to the compare process is 5000 which will already take a lot of time. GedComs do not get imported, but indivduals are matched to existing profiles.
There are very good rules on naming, you will need to follow those to make the matches and preventing creating duplicate entries and a lot of UNKNOWNs.
My strong advice: import this file into Gramps, work on cleaning it up there, making sure you know which sources are real and good, and then export a family line.
You can add your personal IDs here, but only as plain text. Wikitree works with its own IDs. A hidden number and a public Name-ID.
One of our mentors created a tutorial for the GEDCOMpare process that others found very helpful. I would start there.