Looking further I did find several EA buildings that would work, but many others, particularly from LN would not. It's not a simple matter of buying and remodeling them. They are high rises and you can't just chop it down small enough to make them work. However, the Grind, can be, (and has been by me), made to fit and the Fusion Lounge would fit right in. The rest would not. Besides, lets say you buy a building with the idea you are going to make it into one of the missing venues. Aren't you then breaking a rule? Don't you have to go into Edit Town to do this and that is definitely a no no.
Some of the buildings from Appaloosa springs fit very well also. For instance, the Dive Bar.
In the beginning we could certainly play a dynasty without any of the newer EP's. But now that we have them don't we all want to be able to have the careers and opportunities that come with them? Some times a bit of flexibility is called for in order to make game play more fun. Yes, you can put in some EA buildings and just by changing the name of the lot you have something different. For instance, I have the first casino type building that came out. It has a bar and a pool and lots of games. So it COULD be a Poolside Club, right? EXCEPT, once again, you would have to go into Edit Town to change the lot type and this is for an EA building! So far I have most of the buildings without using UC buildings and without changing lot names:
Dive Bar from AP
Dance Club from BP (the Grind)
Equestrian Center
Horse Ranch, (yay! There was one!)
Live Venue, Private Venue and Big Venue from ST haven't found a park yet
Coffee House
Fire Station, (that one was easy, so many to choose from)
I would like the others but can pass on the Exclusive Club, (just one more place to booze it up and dance), definitely pass on the Laundromat, Vampire Club, and local Watering Hole, though I think I can find one of those in TB. I would so love a disco but the only one I know of that isn't a high rise is that little place in HS that looks like a disco but isn't called a disco. With the Show Time things in and just a bar or two plus the horsey things I think a dynasty would be very viable even without using UC stuff.
At the very least this has made me think and look further into towns I haven't played much.