First off, you will need a very sturdy base to affix that press to. There is quite a bit of force exerted by a press.
Some type of case lube will be required so that you don't end up with a stuck case inside the die on your first pull of the press handle. You could skimp by with using an oil on the case exterior, but be sure you don't get it inside the case itself. Eventually you will want to get proper lube.
The scale (strongly suggest a beam scale) and calipers (electronic from Harbor Freight is a good investment) are a must, from the start. You must be certain of both the powder charge as well as the COL of the finished round. Even if using a cannelured bullet, you need to know your finished COL.
A case trimmer (and appropriate holders depending upon the type) may not be required right away, if your case length is within the maximum specification. If you are using once fired brass from your weapon, you will probably be ok for your first reloading. If your cases need to be trimmed, you will also need to chamfer and deburr the case mouth after trimming. Tools are available to do this, but on a tight budget this "can" be done with a dull pocket knife.
Primer pockets can be cleaned with a small screwdriver, but again the proper tool is available when the budget allows. There is also the possibility that the primers in your cases are crimped in. If so, you will need to either swage or ream the pocket after depriming. Reaming "can" be done with a pocket knife, but is much better suited to the proper tool. I personally would not attempt this with a pocket knife although I have heard of people doing so.
This should let you get started on a tight budget. Invest in the proper tools as funds become available - the right tool makes the work much easier and the finished product that much better.
Oh, and welcome to reloading.