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Concept plans for renovation

We have recently bought a house that we intend to renovate next year. However, we want to make concept/3D plans to be sure what we want to do and roughly how much it will cost. We are thinking of renovating the 2 bathroom/toilets, kitchen. Removing existing windows and replacing with french/bi-fold doors. We have a single garage but would like it moved/replaced with double garage. Want to improve indoor/outdoor flow. Need ideas!