Not sure about horde black templars that is a bit 4th edition.
But if that is what you want then cool. Also assault marines do not do it for me, they are not completely useless but I feel you need something a little stronger.
I would find the points for
potms for the vindicators. I feel the vindicator list just lacks antiflyer for one, then you have a weird mech footslogging going on, which with a short range range tank just is not right.
The second list looks pretty smart.
Yes, aeroplanes can start with people on board. Yes, aeroplanes still have to go into reserve.
As such do not go for vets. Use a platoon, then you will have 3 scoring
IG units to put on the 2 aeroplanes however you see fit.
Also the heavy bolter sponsons are worth it.
There is an obvious suggestion, which is swap over allies and allied, or however you want to put it.
So you can bring more than 1 unit of aeroplanes, which will be a lot healthier for you. Firstly they become two targets, they can attack two targets, they go different ways, et cetera.
Also this means you do not(you can argue amongst yourselves)need a
EC. Then you can bring a command squad with 2CML, termies with 2
CML as desired.
Personally I would use
IG to do most the scoring and spend free points on typhoons but you can bring the 2 horde units of
BT if you want.
This will still be virtually the list you have written above but just more stream lined.
Good luck