I was wanting to add new shocks and struts to my car. I was probably going to to with Tokico HP Blues. I was wondering if it is ok to add shocks, but not replace the front stock struts right now. I don't have the $ to do struts and shocks, but do have the $ for shocks. So, is it ok to do this? Also, where is the cheapest place to buy Tokico shocks?