For the rear footrests, I'm not sure if you need just the individual footrests or the brackets also. Assuming you need the whole assembly...
Skipping the four screws which I assume you still have, looking up the parts that make up the rear footrests and brackets according to the spare parts catalogue and checking prices on Ducati Omaha:
$254.88 1 82411892BA REAR R.H. PLATE 1
$9.90 2 84740021A BALL 2 (only sold in pack of 10)
$1.99 3 79910241A SPRING 2
$12.55 4 82110511AB FOOTREST PIN 2
$254.88 5 82411881BA REAR L.H. PLATE 1
$0.99 6 88450031A CIRCLIP E-TYPE 2
$9.98 9 69610121A BLOCK 2 (sold in pack of 2)
$105.45 10 46410541B LEFT FOOTREST 1
$105.45 11 46410531B RIGHT FOOTREST 1
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$771.60 total to buy new
I'll sell for $550 shipped (30% off = $540.12 + ~$10 shipping).
These are off my 2020 V2 that I built into a track bike.