Hello,
He looks really good in that picture. I'm glad you got an Arcadia ordered, that should do really well for him.
The screen top can be the wider mesh type if you want to place it on top, so the UVB isn't blocked from
going through it too much.
You can keep the stick on thermometer, but go ahead & get a digital probe also so you can be sure to get
accurate readings of the basking area, etc. The stick on can be helpful for the overall ambient temperature
or air temperature as well as humidity levels, to some degree.
Let us know how he is doing.
Tracie