Basic Floor Plan Re-Draw

I have villa drawing in 2D in autocad format. I need to explore the home from inside and outside in 3D walk in.

one page 8 1/2" x 11", currently hand drawn, community is asking for one done on "Autocad".

Castillo Properties 4627 Roswell Rd: Create floor plan from paper version of 1300 sq ft house. Hand drawings

Need photometrics for interior and exterior of car dealership. Needs to be able to tell us what light levels is best and what product (LED only) you recommend for the entire dealership.

This task requires calculating which profiles to use for a gallery structure! No need to design or draw anything in this task. Only calculate. The attached plan was made by an engineer for building a gallery in my house from steel profiles but I suspect the profiles he chose are an over kill so I'd like to hear some more opinions. I assure everyone I will ultimately build the gallery under his approval. The 40 square meters gallery is to be used for 2 living rooms for my kids. It will hold normal furniture that such rooms should hold. The main beam would be HEA, IPN or another profile you may recommend for decreasing the profile height. The main beam would be made of 2 parts welded together and an RHS or IPN pillar underneath the connection point. I am not sure yet where the pillar would be, therefore I need the main beam profile calculated for 2 options: 390cm + 600cm or 270cm + 720cm. Each part of the main beam might be a different profile so please calculate the minimal required profile for each part. I would also like to know what profile measures I would need if there was to be no pillar in the middle of the main beam and it would be a one piece of 990cm. All other 3 sides of the gallery have an existing wall and part of this wall has an existing reinforced concrete belt (yellow in the drawing). There are also 4 existing reinforced concrete pillars as appears in the drawing. It is planned to have a UPN profile (welded together as one) all along the 3 other sides. The whole structure will be supported by 6 RHS pillars (the main beam middle pillar might be IPN) that will be attached with Jumbo screws and chemical adhesive to reinforced concrete floor. At the back plane of the gallery the 3 RHS pillars are very close to existing reinforced concrete pillars. Is it possible to attach the UPN to the existing pillars and make do without these 3 RHS pillars? The main beam and the back plane will be connected with 15 IPN beams. I still don't know if the length of these beams will be 429cm or 470cm so I need both options calculated. The floor surface will be made of several layers for isolation with 30mm pine wood at the top. I need to know what are the minimal measures for all the profiles in my plan and according to which assumptions the calculation was done. One last question. Above the gallery there is a 10meters wide by 8 meters long wooden shingle roof (as in the photos) that is supported by small wooden pillar in the middle. I need to install a 10meter steel beam from side to side at the middle of the roof so that I can remove the supporting wooden pillars. What would be the minimal IPN profile to use for that? Would IPN 100 or 120 do the job? Calculate the following profiles: Main IPN or HEA beam at 720cm + 270cm (2 different profiles?): Main IPN or HEA beam at 600cm + 390cm (2 different profiles?): UPN: Width IPN beams at 429cm: Width IPN beams at 470cm: RHS pillars: IPN pillar: Roof 990cm IPN beam: Any improvement suggestions are welcome.