What about the bar pulls on the 4 larger drawers and a knob on the two smaller ones? It would cut your expenses, plus solve the dilemma of different size bars. I just looked for my inspiration pics on knobs/pulls for my bath remodel, but I must have deleted. With apologies for yet again posting pics of my vanity....this is what I did. Not exactly the same set up as yours, but you can at least see what I mean. The small drawers are just false fronts on really long drawers, just to visually break up that too long expanse.

Trying to match cabinet hardware to the color and finish of the faucets of the vanity. I tried Lew Dolan but the gold was too pale and less yellow gold than the Kohler fixtures. I'd be moved if anyone could give me a lead for a color match to the Kohler...Mockett does not have this...does any one?? Many thanks to all who have contributed to the completion of my new bathroom!!!!

By the way, here are photos from a few months ago when I compared a bunch of plumbing fixture brands. Photo w tile samples & lots of hardware: (L-R) Kohler Vibrant Brushed Moderne Brass knob, Kohler Vibrant Brushed Bronze knob, Delta Champagne Bronze hook, Moen Brushed Gold handle, Kohler Vibrant Brushed Moderne Brass handle Photo w tile samples & two pieces of hardware: Kohler Vibrant Brushed Bronze knob, Kohler Vibrant Brushed Moderne Brass handle Photo of hand and two pieces: Brizo luxe gold on the key ring, Kohler Vibrant Brushed Bronze knob Photo of hand and three pieces: Brizo luxe gold on the key ring, Kohler Vibrant Brushed Bronze knob, California Faucets Satin Bronze Hope this helps someone! Also for what it’s worth, I initially thought Delta Champagne Bronze was a great match for Kohler, but when compared to the Brizo it felt really off. Kohler & Brizo match beautifully, though. You may be able to match Kohler & Delta.

I am looking at glass warehouse too. There is a pic online… can’t find it at the moment that shows Vigo to have a perfect match, and from what some say, the Glass Warehouse is the same. I am unsure, but I see where you’re thinking is going. The glass warehouse has frameless ones too which are a bump up in looks some might thunk too. Bit of a conundrum for sure. It would be great if someone posted about this if they’ve already taken the leap.