Thanks for the feedback, I had wondered whether i5 was ok and if i7 or i9 was overkill.
I’d be building a sketch up model or slight variations of the same model using new files to the point where im 80-90% happy with it . Then I’d be rendering.
Im not offering 3D rendering / modelling services to the public as such. In that im competing with Others on speed or image quality. I’m not going to be using this new computer in a high speed / pressure work situation where I have clients calling me with “is it ready yet ? We need these renders by tomorrow” kind of a thing . I’m building 3D model of a Design of my own and then going to pitch it to a Developer.
So most of the rendering would be done one model at a time after maybe 3 or 4 weeks of work first just building the 3D model. Rendering in Real time isn’t a huge deal as I’ve made renders before and have a fair idea how things will look when I actually do start the render process.