Around 1k+ zen. Not really sure about the amount, but I made around 550zen (bought a costume before the 20% reduction), bought a zkey when it was cheaper, then I made around 500-800.
I'm not grinding dil, 2 of my characters are stocking it to purchase rank 5 romulan reputation goodies, only 2 of them are trading it for zen, because I don't really care about them, and the stuff they have.
I have a low dil income from those 2, mostly from the academy lore question, and 1 of them from winter eppohs->mark->dil.
Well, prior to this, upon coming back to the game I probably over the last 5 months before December probably around 60-70 bucks worth of Zen, in the past month, I'd say...another 60 or so, just spent about 1500 on 3 fleet Doff packs when the Jem ship was possible and also 3 Doff slot upgrades, and now I'm sitting on about 5500, 5000 of which I should be using to buy the Vesta 3 pack, but I cant stand to watch my amount drop by about 90%.
Since s7 I have gotten enough zen with my dil for a Vesta 3 pack, 2 character slots, a respec token, and 40 master keys, while still having enough dil to get gear sometimes and to donate a reasonable amount to fleet projects.
Im upto 15k exacually, i did have a little bit more but i spent 500 on a respec token after the fiasco with the changing of rep abilities like the shields and 250 on the uniform slots (250 for 2 extra slots for every character on the account is an absolute bargain to me), saves going to the tailor when you have 4+ outfits to choose from