For the international I will second VTIAX.
For the bonds I would say something more diversified, probably VBTLX.
The returns lately aren't as good as the long term bonds you are looking at, but ignore that.
Long term bonds had a great 2014 because interest rates went down. If/when interest rates go up long term bonds are going to get hit hard. Long term bonds are highly sensitive to interest rates. For an example VGLT was down 12.4% in 2013. That was because in 2013 people 'thought' interest rates might rise. It has a duration of 17 years which means if interest rates go up 1% it will probably drop 17%. VBTLX is a lot more diversified with long, intermediate, and short term bonds. Its also normally going to be a better hedge against stocks.
For location. Stock index funds are highly tax efficient. Especially Vanguard index funds and index ETFs. So they are great for taxable accounts. Bonds... even in an index fund, are not tax efficient. You pay ordinary income on the interest payments. So keep the bond portion of your portfolio in a tax deferred account like a 401k or IRA.