Hi Irishnick. Dealing with limited 401k options is a very common issue. Luckily, you have some pretty good funds available.
For reference, here's how your portfolio has performed over every investing timeframe since 1970:
Offhand, your portfolio seems very reasonable. If it's working for you, there's no need to change a thing. But if you have concerns, you can play with other options and charts here to see if some other combination is more desirable:
https://portfoliocharts.com/calculators/The key concept is to not focus so much on the fund but on the index it tracks. For reference:
FUSEX & FXSIX are large cap blend
FSEVX is an extended market fund, but small cap blend should be reasonably similar for modeling purposes
FSGDX and VFWIX are total international
FBIDX and FSITX are total US bond market
Do you also have an IRA or taxable brokerage account outside of your 401ks? If so, you might want to think of your investments as a single portfolio across all of your accounts. That's a good way to diversify your overall asset allocation without feeling forced into poor 401k fund options.