2 ETBs on the way

[Lrptls]

in 3 days i'm picking up a male and female emeralds. they are 4 feet and 5 feet, and the guy says they'v never bit him. luckily hes meeting me so we wont have to ship them and he gave me a GREAT deal on them. they were $600 but hes trying to get rid of alot of stuff to get more GTPs so he dropd it to $550 for me. oh and these will be my first ETBs, and my first tree snake of any kind.

i'm going to set up their homes tomarrow, they are going to be in seperate houses, both in 35 gallon tanks. the tanks are about 2.5 feet long, about 2 feet high and about 1 foot wide. havn't decided if i'm going to use newspaper or reptile bark for the substrate (not sure which one is best for them) i want to put 3 branches in both cages but i'm not sure the best way to put horizontal branches in an aquarium? suggestions are needed for that. the tops are screen but i'm going to use something to cover most of the top to keep humidity in, the part that wont be coverd will be for the heat lamp unless there is a better way to heat them.?

any suggestions and comments would be wonderful, i'll take pictures of them while placing them in their new homes so i can put them on here. iv never been so excited about geting a new pet!!! thanks!