I agree, Lager Yeasts require cooler temps (around 50F for 2-3 weeks) in order to ferment out. You can use an ale yeast with your recipe, however it will not be the same. Lager yeasts usually leave the beer cleaner, meaning they don't impart flavors to the beer.
Some alternatives would be use the most flavor neutral yeast you can find (like WLP001, or S-04).
You could also make what is know as a steam beer. You would use the same Lager yeast, but ferment it at Ale temps. It still wont be the same, but it will be good either way.
Cheers
Preston