Downwind Sail for Ocean Race

[Dockhead]

We have unexpectedly qualified for a long distance race this summer. It's not all that serious and we will not put on a mighty struggle to improve our position, but use of the engine is totally forbidden, which spoils my usual light wind downwind tactic of motorsailing. Even if we don't care that much about the results, we sure as hell care about not bobbing around out there and not arriving. Downwind sailing is likely considering the 900 mile route.

So I think I'm going to need to add a downwind sail of some kind, something which is not presently in my sail inventory (I have carbon laminate mainsail, carb lam blade jib, and carb lam 120% yankee, plus a Dacron staysail/storm sail on an inner forestay).

I have a carbon pole off a TP52 but I don't have and don't intend to add a bowsprit.

What are my options?

I guess the obvious candidate is a regular symmetrical spinnaker. Probably pick up a used one cheap somewhere.

But should I consider something else?

I don't have much time to deal with this. All advice appreciated.