I could record a piano only-version as the keyboard I have now only has piano sounds.
To do these songs, I had a keyboard that had loads of sounds and I could record parts separately, getting the effect of an orchestra, drums, and then I put it onto 4-track tape to get onto the track anything that didn't come from the keyboard, i.e. my voice. and in some cases flute or sax.
I had quite a sophisticated set-up for a teenager, it was all my dad's stuff. And he borrowed a professional microphone for the recording when I am singing.
I could think about building out a studio when I get my house, and do some more work on song-writing, I think for now I am going to concentrate on my piano technical skills as that's what I have the equipment to do.
I am thinking about piano lessons, just not sure how to fit them in around work and exercise!