Divest, you have to decide if you're going for quantity or quality. As I see it, you have four choices:
One: QUANTITY. If you want Quantity, you can use that $200 toward about 5-6 street girls (assuming you need a few bucks for taxi, smokes, beer, tip, etc.) but they will be 15 minute wham-bams where you get NO GFE, and have to negotiate just for them to take off their clothes or go CBJ.
Two: QUALITY. If you want a good looking, clean, GFE (awesome!), you could use that $200 toward Sampsonrico's favorite place, Mexicolindobar.com The site will have the pix of the girls, or a way to see the pix. The girls run about $150, the room is $30, the taxi is $15 (iirc), so that's about $200 - but you should expect to pay a bit more to tip the lady if she is as she promises.
Three: MIXTURE ONE. If you want pretty good looking chicks who will perform a prefunctory CBJ and get fully naked without bargaining, but still give you a performance akin to a street girl, go for a bar girl. For $200 you can probably score a couple of bar girls at about 60-100 each, and the remaining money will have to go to taxi, drinks, tips, the room, etc. Adelitas, Chavelas, Hong Kong, etc. Expect them to ask $100 or more plus the room of $5-10. You can sometimes get them down to $40 or $60 depending on your looks and their desperation, but I usually am happy to get them to take me for $80.
Four: MIXTURE TWO. I just re-read your OP, and saw you have $250 to spend, not just $200, so you could do this: Use an escort, then have the taxi return you to the Zona instead of La Frontera, and window shop and utilize the services of a street girl, then take a taxi to the frontera.
YMMV. Good luck. Go forward, experience, enjoy, and report back.
PS- if I were going to stay overnight and do the bargirl scene, I would use the hotel's rooms for the action, but stay at Ceaser's on Revolution. It appears to be a nice place for $30, but I don't know if it is girl friendly. It just doesn't have that same "nasty" sheet/bedding that the Zona hotels all have.
PSS- I don't have any dog in the fight, so to speak, as far as preferring one escort service over any other. I have used MLB 3x, and have dealt with Sampson each time and been quite pleased and very happy. Sometimes happier than others, but always happy. I haven't used any of his competitors ever. My suggestions and descriptions are based on my experiences only. I have always been impressed with the 5-star quality of the car-hotels, and I have always been impressed with the youth, beauty, and performance of the escorts. Do you want a dream-fuck of the local hispanic college girl, or the quick passion-less fucks of the high school looking street girls, or the uninspired professional performances of the 25-30 year old single mother bar girls? That is the question you will need to answer.
I have never stayed overnight in TJ, so I did not include the price of an overnight hotel into my options.