I think this would fit the budget and believe it is better than other psu's in this range.
The "Eco" models use low grade components, which defeats the purpose of looking at a Seasonic. Not worth it IMO.
The best compromise would be a low wattage ~300W model thats designed well. Anyone with a less than 3k budget for their PSU most likely has a low power consumption rig. Unfortunately since consumers likes big numbers like 500W/600W, there aren't any good low wattage PSUs. Even the S12II 380 got pulled from the market here.