Sort Order for a VARCHAR2 Column

Hello Everyone,
This is probably quite simple, however I cannot see it. I am trying to sort on a varchar2 column that has numbers, text, dashes, tildes, carets and underscores which are mixed to compose a wire number. I have come up with an order by that changes the sort order from alpha to numeric satisfying one portion of the requirement.
select wirenbr,fromitem "from",frompin,diagnbr,sht,toitem,topin,effect
from acft_wires
order by decode(to_char(nvl(length(translate(wirenbr,'A1234567890','A')),0)),'0',lpad(wirenbr,18),wirenbr);
The select returns:
1
2
3
20
21
200
201
1000
A
ADT1
AEN1
AE1
AE9
AFA
B
1A
2U7230A-ZZ
2000A
213-22
22X100A20
220-11
The customer preferred sort looks like:
1
2
3
10
10A
11
200
201
201-01
202
1000
1000A
1001
I will build a shrine in my hall of honor to this forum if someone can point me in the right direction on how to solve this problem.
Thanks everyone for your help.

ok, start with this
order by
translate(substr(wirenbr,1,1),'1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ-','0000000000ZZZZZZZZZZZZZZZZZZZZZZZZZZZ')
, nvl(length(substr(wirenbr,1,instr(translate(wirenbr,'1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ-','1234567890XXXXXXXXXXXXXXXXXXXXXXXXXXX'),'X')-1)),length(wirenbr))
, to_number(translate(wirenbr,'1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ-','123456789000000000000000000000000000'))
First, all that start with number go to the beginning and all that start with a letter go to the end.
Next, sort by the length of the first numerical part, as per Al's first solution.
Next, sort by the numerical part.
I started getting what I think is the right sort by that point. However, I think that you'll also have to add
stuff to sort by the alpha part, mine was
, NVL(RTRIM(LTRIM(wirenbr,'0123456789'),'0123456789'),0)
The biggest problem I see is all of the different number-letter-number
number-letter-number-letter formats. How many levels of recursion you'll have to go through to get it perfectly sorted, could you have ZZ999ZZ99Z9Z9Z9Z99?
Any ideas for breaking this value up?

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