I can give my own personal advice if you like.
Nolan with a Crossbow and Beastfoe will be, simply put, too good. If his support partner is a reliable dodger or has a decent dodge affinity, their dodge rate (Nolan's partner, anyway) will make them reliable enough to tackle one front by themselves.
Other than that, try shielding the other front with the rest of the units. Feel free to make the most of Physic and Beast Killer. If you want to level up Volug, now is a perfect opportunity - even if you don't use the Resolve+Beastfoe combo, he can still get a bundle of experience from Reaper Cards or simply taking a hit.
Try ordering your units to hold back on the first turn, then let them roam on the second. This gives you time to move your more reliable units in place with the allies ready to reinforce.
Leonardo with the Brave Bow (to the right of the tiger above your units at the start) ought to be able to one-round untransformed Laguz. If you intend on converting Jill, go nuts with the Brave Axe and renew it with Hammerne.
Lastly, get some good music on in the background to help you focus. :V
That's the most I can think of, at any rate. Good luck to you.