I'm not sure that's possible, Astral: There are now some 47 files in the Configs folder, inc. three XUI folders - all or any one of them potentially impacting our mods. If you read my own "help me" post above - eight of the nine files in Bdub's Dirt Bike had to be changed, and I still haven't fixed it. A20 now includes connectivity to "Twitch", allowing others to view your game as you play: all of the /loot/lootcontainer id=XX " now have a new attribute (name =" something ") added on: the grouping system is shuffled around as well, and that's only one file. The high-end mod overhaul makers - like Khaine, Jax, et al - are making and publishing as we write, so all is not lost, but it's going to take some time, work and patience before the dust settles.
In the interim - if I may suggest - you could backup (cut/paste) your existing 7D2D folder, then switch the game up to A20 Experimental -and play it for a while, making a new Mod folder, and adding in a few of your old A19 mods. If they work - bonus! If not, well - check with the author - he or she might be inclined to make their mods compatible. Take a look at Jax's A20 mods on this site - some are very good and work just fine.
Good luck!