small landscape, hardscape design.

just need a quick hardscape design for a transition area from the house to existing patio and adu.  

Total design area = a rectangle 50 ft (east–west) by 15 ft (north–south).
North edge = back of my existing house with sliding door.
South edge = my existing concrete patio and ADU — we are not building those, we’re only designing the transition space in between.
East and west edges = fence lines.
Inside this 15 × 50  dirt strip, we need to design:
Landing outside the sliding door (+14 in above grade).
Steps/paths that connect down to grade (0 in) at specific locations..
A step to intermediate level (+7 in) a preexisting dining area.
A rectangular fire pit (30" × 66") with 4 ft seating clearances--if possible, not sure if there is room.
Hardscape circulation (paths, steps) with option to mix in planters or artificial turf.
Everything connects smoothly from house → dining  → patio  → side walkway. 
 
Need this done fast.  does not to be full plans or 3d or anything, can even be a good sketch.
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