OP wants a type set, not a date set, so any date will do as long as it is an S mint coin of that type. Coinfrog has it.
(n.b. if OP accepts problem coins this may be doable for quite a bit less, but who really wants a problem coin type set?)
Let's see...assuming a 55 average grade, and in a big 3
TPG slab, and common dates when possible,
1908-S
Indian Head cent in AU55: $225
Any common S mint
LWC in AU55: $1 or less
Any common S mint
LMC in AU55: $1 or less
1912-S
V nickel in AU55: $1500
Any common S mint Buffalo in AU55: $10-$13
Any common S mint Jeff (pre-1964) in AU55: $1 or less
Any common S mint War Jeff in AU55: $5
Any common S mint post-war Jeff in AU55: $1 or less
Type coin S mint LS
Half Dime Type 4 in AU55: $200
Type coin S mint Lib
Seated dime Type 3 in AU55: $3000 (1858)
"" for Type 5 in AU55: $100 or less
Common date S mint
Barber dime in AU55: $100-$120
Common date S mint
Mercury dime in AU55: $5 or less
Common date S mint
Roosevelt dime in AU55: $3 or less
1875-S 20c in AU55: $425
Type 2 Lib Seated 25c in AU55: $2250 (1865)
Type 5 in AU55: $175 (1891)
Type 6 (w/arrows) AU55: $700-$900
Common date Barber 25c S mint in AU55: $200-$250
1917-S SLQ Type 1 in AU55: $275
Common date SLQ Type 2 25c S mint in AU55: $75 (1930)
Common date Silver Washington 25c S mint in AU55: Less than $3
Seated 50c Type 2 in AU55: $325-$375 (e.g. 1860-S)
Seated 50c Type 5 in AU55: $225-$275
Seated 50c Type 6 in AU55: $1500 (1873-S)
Common date Barber 50c S mint in AU55: $500-$600
1917-S Walking Liberty 50c S mint (obv) in AU55: $2,000 -ouch...
Common date Walking Liberty 50c S mint (reverse) in AU55: Less than $10
Common date Franklin 50c S mint in AU55: Less than $25
Now it starts to get a bit spendy...
1859-S Seated $1 in AU55: $5500
1872-S Seated $1 in AU55: $6000
1877-S Trade $1 in AU55: $450
Common date S mint Morgan $1 in AU55: $40 or less
Common date S mint Peace $1 in AU55: $40 or less
Silver S mint Ike $1 in AU55: $10 or less
Clad S mint
SBA $1 in AU55: $2 or less
Gold and such...second or third mortgage on the house.
Gold $1 Type 1 in AU55: $1500 (1854-S)
Gold $1 Type 2 in AU55: $3500 (1856-S)
Gold $1 Type 3 in AU55: $1750 (1859-S)
Gold $2.50 common date in AU55: $350
Gold $3 in AU55: $4500 (1856-S)
Gold $5 Lib Type 1 in AU55: $7500-$8000 (1858-S)
Gold $5 Lib Type 2 in AU55: $500 (1878-S)
Indian $5 in AU55: $600 (1916-S)
Gold $10 Lib Type 1 in AU55: $2600 (1856-S)
Gold $10 Lib Type 2 in AU55: $675 (1901-S)
Gold Indian $10 in AU55: $1000 (1916-S)
Gold $20 Lib Type 1 in AU55: $4000 (1858-S)
Gold $20 Lib Type 2 in AU55: $1500 (1874-S)
Gold $20 Lib Type 3 in AU55: $1300 (1904-S)
Gold Saint $20 in AU55: $1200-$1300 (1916-S)
$1
ASE "S mint": bullion
I'm leaving out territorial, foreign, and commemoratives.
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