I used blender 2.8 to put them together but it is a little painful. You have to go to the add tab above the timeline. Click image sequence select your folder and boom makes a video strip for you with all your timing golden. Then you just have to make it render in mpeg h2.68 I believe and you’ll have a crisp animation in no time.
Oh and you have to set it to the right frame size. It doesn’t understand it by time. I googled it and figured it out in 10mins.