That's a good start.
I have (I think) 13 carboys, four 7.9 gallon fermentors, a 10-gallon fermenter, bunches of bungs and stoppers of different sizes, a vacuum pump, manual bottle filler (I'm a holdout), nice floor corker, hoses and hoses, couple dozen airlocks, several gallon jugs, wine filter, ...etc. I could go on for awhile here. However, I have been doing this for a little longer time.
As time goes by, what you once considered an optional piece of equipment will suddenly become an absolute necessity. Trust me! Nice thing is you can acquire extra equipment a little at a time.
If you intend to make any of the Mosti Mondiale premium kits, you might want to get a 10 gallon fermentor bucket. At least you should get a 7.9 gallon fermentor bucket. On the 7.9 bucket, order at least one with a spicket, so you can use it to help fill your bottles until you get an automatic stop bottle filler, later on. (Yep, someday you will see an auto filler as a necessity. My being a holdout is almost done!!!)
Need a spray bottle to spray kmeta sanitizer solution and a gallon jug so you can make the solution a gallon at a time. (I have two sprayer and jug sets - one set for kmeta, one for StarSan.)
Got to have a small bucket so you cab wash things in it.
A thermometer is pretty much a necessity.
Need a couple of 1.7 liter wine bottles around to hold excess wine. Gets bungs to fit them and airlocks for them.
Get a clear 1 to 2 liter sealable container to hold your lees/sediment after racking. Put the lees/sediment in it and seal it. In a few days to a week, it will settle again allowing you to save about one extra bottle of wine each time you rack. (I sometimes can recover 2 full bottles.)
Get a brew belt. If not already, you will certainly need one unless you live in Florida or South Texas. You won't be able to degas properly without one.
A bottle brush and carboy brush.
I am sure I have missed some other equipment.