Hi Steven
Assuming funds short,l ook at the drawings, make a list of taps and dies needed for any threads. Ascertain tapping drill sizes for only the required taps. Don't buy sets as you will probably never use some sizes. Just go to a supplier like Tracy tools to buy just what you need, including only the size of diestocks and tap wrenches to fit. The foregoing is probably the cheapest way of acquiring only the tools needed. Don't buy second hand as they are all cutters and likely to be blunt, you probably have no means of sharpening them and small diameter taps could snap in the work. I suggest you take care with taps smaller than 1/8" diameter and use the very next larger tapping drill size to avoid overloading tap and breaking it. Resulting thread still has similar strength. Join a local club, choose one with a lathe in their workshop and check if someone will be willing to teach you how to use it and make the parts needing turning, boring, drilling. Be aware that your project will take sometime and money to complete but do enjoy the journey and very good luck.
Hopefully, others on here will offer their advice and words of wisdom.
It is this week, a hundred years ago, that the designer of your project started writing in Model Engineer.
John
Edited By DMB on 06/05/2022 08:10:27