Would buying these make sense and work for holding 3 rods?

I like to have a wide area to fish so I was thinking 12 inch buzz bars in the front and 8 in the back.

I'm thinking the 12-19 inch bank sticks should work but I'm not sure if that size is ideal or not.

Im just going with the cheap alarms for now I'm more worried about my rods being secured then having an alarm.

Do i need anything else for these pieces to be a good rod holder?

Any feedback is appreciated, I'm in the US and I don't have any experience with these types of alarms or rod holders.