Heritage Group

40/60

40% Equity

U.S. Large-Cap Blend
5% Vanguard 500 Index Fund
U.S. Small-Cap Growth
15%  Vanguard Small Cap Index Fund
International Large-Cap Blend
20%  Oakmark International Fund

60% Fixed Income

Intermediate-Term Bond
60% Vanguard Total Bond Market Index Fund
 

60/40

60% Equity

U.S. Large-Cap Blend
7.5% Vanguard 500 Index Fund
U.S. Small-Cap Growth
22.5%  Vanguard Small Cap Index Fund
International Large-Cap Blend
30%  Oakmark International Fund

40% Fixed Income

Intermediate-Term Bond
40% Vanguard Total Bond Market Index Fund

80/20

80% Equity

U.S. Large-Cap Blend
10% Vanguard 500 Index Fund
U.S. Small-Cap Growth
30%  Vanguard Small Cap Index Fund
International Large-Cap Blend
40%  Oakmark International Fund

20% Fixed Income

Intermediate-Term Bond
20% Vanguard Total Bond Market Index Fund

The following asset classes are missing from this portfolio:
Int'l Small-Cap Growth
Int'l Small-Cap Value
U.S. REITS
Int'l REITS
TIPS

You should try to invest in as many of these asset classes as possible through IRA or individual taxable accounts to arrive at a portfolio that comes close to the chart below: