WEN 3403 looks like the exact same unit as the HF 2HP DC, but with a bigger impeller (same size as the Rikon - 11 3/4 in). And buying the WEN would be cheaper than HF + Rikon impleller update.
Wen 2403 - $284
Harbor Freight - $299 ($179 for the DC + $120 for the Rikon impeller)
My only hesitation is that I can't find any reviews on the Wen 3403. Wondering if anyone has any experience with the WEN 3403?
https://wenproducts.com/products/1500-cfm-16-amp-5-micron-woodworking-dust-collector-with-50-gallon-collection-bag-and-mobile-base