Major problems XPS 2010

First off I am not sure where to post but I am hoping I can get advice.

I have always had great support from Dell in the past.

I cannot rember the date but while still under warranty I called due to overheating of my laptop. It was burning to touch over the primary hard drive. A tech was sent out and they replaced the hard drive motherboard fans etc.  And I still had same problems. So I called a second time and they replaced the fans again. 

I constantly heard a noise when the fan on the left would run.  And this was present when the tech finished the repair but he had no clue what to do about it. Trusting the tech who knew more than I I just dealt with the noise.

Long story but short version... Between court and medical problems and more recent financial problem I did not renew warranty and cannot afford to yet.

Recently have been having problems booting I get the message 

SATA Internal hard drive not found. To resolve this issued, try to reseat the drive.

I looked up the documentation to do this.

Followed instructions to the T removed the cosmetic cover to find that   the little tabs broken off on the left side. Ok easy to figure someone goofed on that. Then as I look not all the screws are there when the documentations says there should be and those that are there some are not even screwed in. I do not think they can unscrew themselves. So we have screws running loose inside my laptop.  I continue following the instructions and reseat both hard drives to find on one the cable is kinked up so that it is in front the connector for the hard drive this on the secondary drive. Now from what I can see in the documentation picture this is not right. Reseated both hard drives  unkinking the cable on the second drive. I did  not find the missing screws but I did seem to solve the noisy fan issue and now it runs quietly. 

Now at times it would boot and other times not and now it won’t boot I get the blue screen. The problem I  still have is  no SATA internal hard disk found.. When I try to boot computer it will start to load windows then I get the dreaded blue screen. It reboots and suggest the start  up repair option so I hit enter it starts that then  blue screens and we back to the  Sata  internal hard drive not found. Any ideas?

 Right now we in start up repair again this is frustrating