BourneRhino

I've been following the above posts with interest. Like Sweetling Park, I'm planning my first (and probably only at my age) Model Railway. I've planned a layout using WinRail X-3. That's fits with me because the resultant layout drawing looks more like a 2D engineering drawing to me and the whole set up works more like AutoCad LT. But I'd now like to move to being able to include buildings and scenery and generate 3D imagery. I've looked at both SCARM and AnyRail and I've exceeded the parameters of the freeware versions without trying. My proposed layout is a "roundy-roundy" centred on main line junction stations with a small goods yard and small MPD. IT will have a lots of flexible tack and a branch line raised over a fiddle yard. The whole will be in an area 5.760m x 3.445m. I don't want to waste money on buying a licence for either of these APPS, so I'm looking for some advice. Should I choose Scarm or AnyRail or is there something better I should consider?