Heating question plus boa cabinet!

[aj099]

Hey so i decided to add a third floor to my boa cabinet,I previously used it for storage but thought i should give them more room.The bottom floor
will have repti bark tommorow ran out of time to get it tonight.

I also added a very large branch to climb on. I treated it before putting it in.

Ok so I have a few question`s.first is heating i would really like to change my heating so i can dial it in perfectly.Curently i am using 1 100w infared 24h and a heat lamp for 12h.I also have a heat mat on the second floor wich keep`s the hide there around 85f.

My heat ranges are a bit low Since it is winter it is alot harder to keep
it proper.I also have a reptifoger on the top ...but it stoped working.....
i bought 2 and 1 broke on the first day second one just broke tonight....

Anyway sorry for making this so long.But what would you guy`s suggest for a good heatsource? i am thinking heat rope or mat`s.

heat on top floor 79f
heat on middle 76f
bottom floor 74f

keep in mind there are basking spot`s that get 95+f.

Here are the picture`s oh and the plant in there is live.