Just a few pointers for things to look at:
1. What kind of shape is the body in, especially the rumble strips?
2. How good are the syncros? (known weak point)
3. Are there any visible oil leaks?
4. Does the car fart blue smoke on start up? (valve seals are infamous for leaking when cold)
5. Is there any odd behavior when turning that might indicate problems with the strut mounts?(infamous)
6. Are the strut replacements OEM or something else? Either way, make sure you test the drivability, mixxed suspension components = bad juju.
7. How does the car look underneath for rust?
8. Do both windows and door lock switches work? (Wiring harness in drivers door also infamous)
9. Does the brake master cylinder still feel strong under heavy braking? (Had to replace mine a month after I got the car)
10. When you take the car to get checked out make sure that they test the wheels for play which might indicate issues with ball joints or wheel bearings.
11. If it's a T-top what kind of shape are the seals in? Any leaking?
If you search here and at mr2oc.com you will find gobs and gobs and great greasy gobs of information on motor swaps.
EDIT: I keep thinking of things to add to the list