I have a rural setting and need very few lights. I am considering 4 deck lights for the entry stairs (VDL-600-BBZ) And three down lights in trees by the drive 2 Woodsman II downlights -7watts each 1 Allstar Downlight. VAL-1814-40 BBZ with 7watt LED MR16 bulb I have planned for the transformer to be in the middle of a two hundred foot line. One line will have the deck lights and the Allstar downlight. The other will have the 2 Woodsman lights in a tree. I want a timer on the transformer. Is the 100 watt slimline what I should buy? What else do I need to make this all work. I have the 12 gauge cable.