Nice car and plenty of stuff done to it. I don’t want to scare you, but when the clutch sticks down and you’re having to pull it up with your foot usually means there’s a leak or air in the system! (If there’s a leak you could be sucking air in) It may just need a bleed but when I had this exact same issue, it became more regular, all of a sudden when parking up at work the master cylinder popped and fluid was everywhere lol.
I’d bleed it, see how you get on, but keep an eye on it. You don’t want to be stranded somewhere.
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