Yard drainage: channel drains along the path and a catch basin

After every heavy rain there is water standing right by my porch. It sits there for hours, seeps toward the base of the wall, and the path from the gate to the door turns into one long puddle, so we walk across the lawn and the lawn is already trampled. The downspouts pour straight onto the blind area, and by spring the wall near the ground is visibly damp. I would like this solved properly once, instead of topping up sand every spring.

Please come out and look at the site: check the slopes and propose a solution. What I have in mind is channel drains with grates along the path and across the driveway at the gate, a silt trap, a catch basin, and an outlet either into the drainage ditch or into a storage tank I can use for watering. I want rain inlets under the downspouts and a proper blind area sloping away from the house. Please bring a drawing on paper and explain why it is laid out that way: where the water goes, what fall you are giving each run, and what happens in a downpour.

Conditions I ask you to accept:
— water must not be discharged onto the neighbouring plot or into someone else's ditch: the discharge point is agreed in advance, and the rules on surface water runoff are checked before any work starts;
— before digging we establish where the electric cable, the gas line and the water main run - nothing is dug blind;
— a trench deeper than one metre needs its walls shored, and in crumbling soil nobody climbs into it;
— after laying: backfill with compaction, the lawn restored and the site cleaned up;
— in your reply please give the schedule, the budget, the full scope of work and what the warranty covers.