The Joys Of Model Railwaying!

Apologize if I get over enthusiastic!

Another budget way into the hobby are those cheap toy trainsets in a tin or their cheaper equivalents. I have seen someone convert these to believable models

Track is cheaply obtained secondhand. People say not to buy secondhand track but it can be obtained so cheap that if it does not work it can be repaired, especially if one knows how to solder onto PCB.

Rolling stock... The main costs of scratchbuilding are the wheels and couplings. One can make ones own couplings, and plenty of people upgrade from plastic to metal wheels so plastic wheels can be obtained at cheap prices.

The first thing to remember is that one can cut a lot of the costs by making things oneself.

Examples. Using a scale and guage that suits scratchbuilding

I can teach you ways to model in a smal! space on a budget. 

It is the aspect of the hobby I specialize in.

That's great you enjoy your hobby. I would love a model railway, I think they look amazing and the details to the trains and objects looks incredible! I wish I had the space to do my own.