Just a suggestion, bring your new cable out of the bottom of the box via a gland to prevent rain water etc. entering the box. Small plastic P clips could be used to secure the cable up the wall to the ariel base.
There are two types of SMA connector. Normal and reverse polarity (RP). The SMA connector types in the photos in the original posting are normal polarity.
There are two types of SMA connector. Normal and reverse polarity (RP). The SMA connector types in the photos in the original posting are normal polarity.