Yes, that Dell Precision desktop should be enough for your business use, which is web browsing and filling out forms or doing paperwork. The only part that concerns me is the 8GB RAM, you can't be going crazy with like 20 PDFs open, MS Outlook, a web browser, etc. For example, I look at engineering drawings all the time and with 8GB RAM, I can't open 10+ PDF without the computer being slow on 8GB RAM. But if your use case is lighter than mine, then 8GB RAM will be enough.
Throwing in another suggestion that's within budget but unfortunately out of stock, see the link below.
https://www.hp.com/us-en/shop/pdp/hp-prodesk-600-g6-microtower-pc-bundleIs this something that will be used in an office or at home? Is the boss allowing you to pick a computer (desktop or laptop) of your choice?