Deck Integration Simulation Via Rendering

I run a deck-building company and want to show each homeowner how a deck or roof-covered deck will look on their own home in order to close the sale. Homeowners send me clear photos of the back of their property; I forward those to you. Your task is to blend a roofed covered deck into the scene. I’m looking for quick turnaround not perfection.
Roof covered decks usually contain the following:
* Ceiling fans (6’ diameter)
* Recessed LED lights
* Tongue and groove ceiling
* 6’x6’ support posts 

Decks contain the following:
* Trex decking in the color Honey Grove
* A single picture framed border
* 2x10 horizontal support beams with vertical 6x6 support posts spaced 6’ apart

Railings contain the following:
* Black 4x4 railing posts with 8’ wide maximum span
* Black 3/4” square balusters spaced 4” apart
* An 11’W x 3/4”H bar top rail around the perimeter of the deck
* LED post lights on top of every post

Stairs contain the following:
* 1-1/2” round LED lights on every riser
* Single picture framed stair treads

Expect one or two reference shots and from there you work your magic in Photoshop, SketchUp, Lumion, Enscape, or a similar tool—whatever helps the homeowner to visualize the end product.

Note: I will provide the deck shape and dimensions.

Deliverables for each home
• Two renders (daylight and dusk) from the original backyard viewpoint, with deck integrated
• Layered source file for quick color or material tweaks

Acceptance criteria
• Deck aligns with existing house lines and grade

Turnaround of 48 hours per set keeps my sales process moving. When replying, include one before-and-after exterior example and a note on the software you prefer for compositing and rendering