And I have only GC ,d one project one couple mil spec home everything else I hire a GC.. who is really a site super..

Here's a few examples:Does the lender release for materials on site or do they have to be installed? 

We have a ton of blogs on different neighborhoods on our site, feel free to check that out. 

Spreadsheets/Templates:If you don’t want to start from scratch, sites like BiggerPockets and others have pre-built templates you can use to run your numbers and track your expenses.

Here is another post on this subject from BP:Learn to Live Life on Your Terms through Real Estate Investing on BiggerPocketsPlease note I have not taken this course or have info on it, just posting what I found on a quick search of this site.

I will definitely take a look at that site. 

Rob just updated everything...here is the site he tells everyone to visit for STR cost seg.STR Cost Seg

Quote from @Julian De la Guardia: Hey Tim,House hacking is not just a good idea; it's a fantastic strategy for someone in your position.

There are a million sites you can look at to get an idea based on more parameters.

See below:Survey (8-10 weeks) Request Permit Prints from Design Team (4-6 weeks) Site Plan and Septic Design from Design Engineers. (6-8 weeks) Need survey back to start designs as this is site specific Energy Docs (1-2 weeks) Need plans from Design Team to make request.