what?? he's not planning to make a new car porch.. just add awnings to the car porch..
i don't that it cost that much.. for 20-30k you can make a new kitchen extension already, fully covered with tile.

for car porch tile.. less than 3k include workmanship and everthing..
for gate.. normally, 2k you can get a new gate..
awning just a few K's only..

This is what I think laa.. I'm not contractor.. i can be wrong.. let share..