Hi and welcome ,
You state the year based on the "number", OK as it could be a 1973.
You don't state the model, it looks like a Grand Sport.
You have the biked facing left, can't see the crank, we show bikes opposite.
I don't know what you meen by entry level, the bit about $800 either.
I wouldn't characterize the bike as entry level. If it has 531 Reynolds T.Set
You can state that too. The components aren't so hot, it's the way it was back then. Only the better English bikes got the modern stuff. The parts are sturdy and 531 is a very good tubing. Again, I can't see all but I suppose it is...........
It's a nice bike. If your care to know more, take another photo or simply fill in some details : #'s , names on the bike or the number you're referring too .