I was able to get nice examples of the 127mm, 152mm, and 203mm Ektar lenses for somewhat less than your stated $200 mark ($150 in total I believe), but that was some time ago. I have since sold the 152mm for lack of use, although it was a nice lens, for around twice what I paid for it if I remember correctly. These are the only lenses that I have for my 4x5 and I find them to be quite handy. I suppose that newer lenses would be nicer, but I can't really find anything wrong with the results that I'm getting now, and these are paid for (a handy bonus!)
Are you interested in doing any color work, or just black and white? Also, check your minimum bellows draw before investing in a short lens so you know if you will need a recessed lens board or not...
- Randy