For that short a time frame, liquid cash is the only option in my book.
The trend of dollar decline has stalled. Stocks, both US and foreign, can see wild swings over short periods of time. You can chose between + 3.5% guaranteed or something likely between + 20% or – 20% (but unknown).
You choose.
I would start picking exit points for stock. Get to the point where, if you lost 20-50% in your stocks that you could still implement your plan (or a related back-up plan).