Rick
I am a toolmaker who had never used MT3 but thought i could live with it.
Wrong decision,removing/breaking the taper lock you need a massive whack on the draw bar to loosen. Net result i bored out the taper and converted to R8 i even already had a Bridgeport Mill
If you are not an engineer there is a big learning curve as well as a big money pit.
I suggest you list everything you need to buy to see how the costs stack up
Don't forget the cost of software and yet another learning curve.
It can be simpler to get the parts you want made by another member who has already gone through that learning process, the parts might seem expensive but you will only pay for a finished part NOT the learning process.
If you just want to learn then great but if you want something in a hurry let someone else take the strain.
Phil