Structural drawing and calculations

I am seeking a skilled structural engineer to provide comprehensive calculations and drawings for a series of king truss structures. The project entails constructing a new floor by bridging joists between these robust commercial trusses. I aim to strengthen the existing truss system while removing the king post truss to achieve an open-plan layout. Key measurements include a 10.5m length, 14.5cm thickness, and 30cm height for each truss, with a king post height of 290cm. Additionally, I require an efficient and cost-effective solution to ensure structural integrity. Please submit your proposals for this project.

Please see measurements below and refer to images

10.5m length of truss - A

Thickness 14.5 cm of truss - B
And
30cm in height of thickness - C

290cm king post height - D



King post thickness approx
Side thickness -14.5 - G
Top 17cm - E
Bottom part - 28cm – F



2.5cm truss from floor

3 metres between trusses

8 trusses in Total