Q1: I’ve looked for “faucet supply lines” to the specifications on the tag but none of them fit this bottom connector look, has it been modified or do I need a speciality line?
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Q2: I’ve seen recommendations for 2 hole faucets for this situation, but with copper tubing I wanted an at least somewhat experienced opinion before I started ordering. What do you recommend for this type sink?
This is the answer.
Also just buy a faucet that integrates the sprayer into it - get the tallest one that will fit, it makes everything easier.
...And get one of those filler plates for the now empty hole in your sink. They're cheap. Get a real stainless one, not a chrome or "satin nickel" or whatever the hell, which will rust in short order.
Or put in one of those glass rinsers that they have at bars. You can get one for like $40 and they're great.
Another fine idea. I've got a soap dispenser pump in mine.
Filtered water is another option to fill the extra slot.
Thanks for the information.
Instead of the plug, you could get a soap dispenser for $25-30.