It is certainly not a hard swap to do. I normall charge $1000 for an SR S13 swap. There are a lot of things you should do while the motor is out, like change some gaskets, water pump, things like that so do your research if your going to do it yourself. If you do part of the job and then get stuck and want to take it to a shop don't think the labor will be drastically less since a shop will have to figure out exactly what you have done and haven't which takes about as much time as doing it in the first place. Plus, I don't know about anyone else, but depending on how much has been done already I will not warranty anything once done unless I go back and do the stuff myself.