Redraw illustartion incorprating bridges

Please see the attached example, which I need to have redrawn to represent my company imagery on my website, specifically the photos of the bridges. www.northco.co.uk.

The central image can be almost identical, but I will rewrite the words.

What I need from you initially is:

1. A quote for redrawing something for me in a similar style
2. When you can complete it - I need it ASAP as I also need to get them printed, so please let me know your earliest availability

Key requirements:
- My version will have 5 steps (not however many are in the example)
- Each step needs to be designed as a separate printable poster
- I use these posters for facilitating planning sessions with management teams
- Professional business style (not too casual or colourful)
- High resolution for printing

Deliverables needed - 7 printable images total:
1. 5 individual step posters - one for each stage of the process
2. 1 centre image - similar to the figure of eight/infinity design you can see in the centre of the example
3. 1 overview image - showing the entire 5-step process together

All files need to be print-ready formats (PDF/PNG at high resolution)

Can you let me know your pricing and availability? I will create a rough layout sketch (not a design) once I know your charges and your availability.

Thank you.