The more I learn of equipment in the UK the more inclined the difficulties faced are extraordinary. My thoughts are based on my own experiences over here. Variable speed was a only a dream for me it was not economic or possible for woodturners. My first lathe I made, self taught to turn. Fully did not expect Rome to be built in a day. In other words you can wait for extras until affordable using the new lathe as either interim or foundation for penmaking.
Our first window coverings in our new house at 20 yrs of age as a 4th yr apprentice Sparky was Bon Ami, my wife drew pictures for interest as she applied it.
Cut your cloth when making decisions. Please have success its OK to dream on the way.
Peter.