Active job

small deck and corner post to roof

Hi, I need a deck under roof corner recess leading to the back door and a corner support post to be put in up to the roof. This is for a 1950's relocated house with its original deck and support post removed. Deck size is approx. 4m x 2.7m. Height 60cm. Plus - One step running the 4m length at 40cm high x 50 deep (for sitting on), then a short third step one end. Ground is firm clay. This job isn't super urgent but I would like to have it done by the end of March if possible. I'm not looking for anything fancy, just the basic structure.