A quick review of Roman numerals…
I = 1
II = 2
III = 3
IV = 4
V = 5
X = 10
L = 50
C = 100
D = 500
M = 1,000
A quick review of K4…
OBKR
UOXOGHULBSOLIFBBWFLRVQQPRNGKSSO
TWTQSJQSSEKZZWATJKLUDIAWINFBNYP
VTTMZFPKWGDKZXTJCDIGKUHUAUEKCAR
Picking out possibles…
OBKR
UOXOGHULBSOLIFBBWFLRVQQPRNGKSSO
TWTQSJQSSEKZZWATJKLUDIAWINFBNYP
VTTMZFPKWGDKZXTJCDIGKUHUAUEKCAR
Replacing them gives…
OBKR
UO10OGHU50BSO51FBBWF50R5QQPRNGKSSO
TWTQSJQSSEKZZWATJK50U501AW1NFBNYP
5TT1,000ZFPKWG500KZ10TJ401GKUHUAUEK100AR
So…
10, 50, 50, 5, 50, 501, 1, 5, 1000, 500, 10, 401, 100…
I don’t see a need to pursue this further.
An interesting idea nonetheless…

There’s gotta be stuff similar to this that can be tried