My D is OOS and was awarded the 15K per year which i believe is the highest amount. After all other offers were looked at- other schools had a lower total COA for us. Also- using Clemson as a safety school IMHO is a risk. Depending on what you are majoring in many very well qualified students did not get in.
If $$ is an issue why not look at schools that “meet need”? Best of luck.