I have an E-M a little older. Mine has a big block with a 4 spd. I'm biased but I think this car is every bit as good quality wise as any ERA or Contemporary. I've owned it since 2005. The fiberglass is like a bank vault. There is no way to see inside the engine but at least have a compression test done, look at the plugs and check the
oil. I'm thinking you just need to drive it and worry about a refresh if it's absolutely necessary. I wish I had a 6 speed as all I do is row the shifter at 40 miles an hour with the gear ratio of the top loader.
If the price is right buy it and welcome to the madness.