How to install gate posts to brick?

[shaqqi]

Hi

I need to replace Colourbond fence with Aluminium slate gate (width 1630 x height 1845 mm approx.) This is DIY kit which I have assembled. Gates hinge arrangement is top and bottom (bottom hinge support to ground and has dyna bolt and top hinge has setscrew to fix with gate post).

Photo of current Colourbond fence, slat gate hinge arrangement and assembled gate is attached for better understanding.

Top and Bottom Hinge ArrangementNew DIY Gate AssembledCurrent Fence and Both Side Wall Brick

I have been supplied 2 gate posts (Aluminium) of 65 x 65 x 2 mm for both sides of gate.

These posts need to install on each side of wall (1 is with house brick and other with boundary wall towards the road look like limestone brick)

I need your advice which bolting/screw arrangement for each side is best suited for this case. Please share the product link and total number of bolts/screws shall be used on each side

Also , my preference is to attach the hinge side of door to the limestone brick side (that wall height is less than 1800 as visible in picture). Will that be any issue ?

Thanks

Hassan