To do brackets and such items, you need at least;
- Measuring stuff.
- Cardboard, scissors, box knife and a pen (for CAD, cardboard assisted design - did a stiffener for a 6MW motor with this today).
- Painters tape, a pen, a carbide tip, and a centre punch.
- 2kg hammer for the punch.
- A good 150mm grinder with cutting, grinding and flappy disk (if you have little experience, don't get a cheapy, it might have dangerous issues out of the box and you would be none the wiser - don´t F around with 6000Rpms).
- Glasses, gloves, shoes and other safety bits for the above.
- A simple stick welder and a box of E7028 electrodes (not sure that is standard in your area).
- Automatic welding mask, welding gloves, a slagging hammer and a steel brush.
- Steel (when you go to the steel yard to order lengths, bring a bucket, after ordering, ask if they have small cut-offs to practice) .
- An electrical outlet.
- Watch chuckey2009's 3 part series on the basics of stick welding.
- A project.
Seems like a lot, be if you are careful, you can get all the above for in-between 500 and 1000€.
You will be amazed what can be made/done with so little, including fixing gates and so forth in the neighbourhood to offset initial purchase costs.
(forgot files in my list, with a bit of practice you can square stuff down to a 1/5th of a mm with them)