Recommended inspections for San Antonio duplex

[Billy Chu]

Hi everyone,

I got my first accepted offer on a duplex built in the 1980s, northwest San Antonio. 
I have a general inspection coming up but wondering what other inspections would be recommended?

I was thinking of having someone check out the foundation (my agent says this is usually in the $100 range). 
I was going to forego sewer scope - I’ve been rationalizing that this is fine since it’s 1980s built, however really I’m deterred by cost. Thoughts?

Any other recommended inspections?

Thanks!