Structural inspection or accept credit?

[Nicholas R Paust]

Hello,

I knew this would be the place to come to for help.  Let me know what everyone thinks.

I'm in the process of purchasing my first buy and hold property.  I had an inspection done and I knew there was some concern about a sagging roof, some old termite damage, and an old stone and mortar foundation.  I was also able to get the previous inspection report from two years prior to compare and it doesn't look like much changed.  Anyway I wanted to know your thoughts.  I'm setting up to have a structural engineer review the property which i've never used before they run about 850-1000 for the inspection and will give estimates.  I also understand that the seller is offering me a $2500 credit but no inspection.  What is everyone thought on structural engineers  I feel like it will give me  a piece of mind knowing what really needs to be done, but at the same time I don't see the sellers going much lower if the repairs are expensive?

any help would be appreciated