Steve, a limited budget (with which I have been painfully familiar most of my life) is no impediment to doing what you want - some of the best ideas on this forum involve improvisation. I second Tom - for getting your feet wet, a simple board on any stand is adequate, and if you use the Katy-style jig, a fence is not required ( alertness and safety-consciousness is, however, essential). If you have one of those folding Black and Decker Workmate type of portable benches, there is a very simple plan on Pinterest. For about 15 years, a similar setup served me adequately for my limited capabilities.
I have a larger version of Harry’s jig (BTW, no special sub-base required, he is showing a 1/4 inch shank bit in a 1/2 inch adapter), but since going with the simplicity of setup that Tom refers to with the Katy-style, it has been gathering dust. As an anal-retentive type, I hate parting with tools, even unused ones.
I have two major gripes with the world: the 220-110 volt divide ( I believe thanks are due to Mr Edison), which means our power tools are about 50% more expensive, and driving on the wrong side of the road ( not sure who to thank) which means our cars are 30% more expensive. And if you think it is bad your end, concole yourself that eight of ours equals one of yours.