When looking for a used turbo, you may very well find the 85-87 draw or pull through turbos will usually be in better shape than the TII blow through turbos. The 85-87 turbos should have next to zero wear on thrust bearing, while the TII turbos could have excessive wear on the thrust bearing. The turbos are same except the compressor cover (cold side of turbo) has a different cover. 85-87 uses a 3 bolt bolt-on inlet, while 87+TII uses a slip-on inlet. TU sells a couple different style adapters to convert the early style turbo to the later style. For 200WHP, you need nothing bigger than a bone stock TO3 Garrett (t03 50 trim).
Do a search on zener diodes. It is in a nutshell, a 4.3-4.7 volt zener diode you can install on your map sensor signal wire to trick your ECU (logic or SMEC) into thinking you are running less boost than you actually are. It basically prevents overboost shutdown from happening, allowing higher boost pressures. Read up of pros and cons.
Proceed with caution only after you have a functional A/F gauge and plenty of injector. Zener diodes can provide you very cheap HP gains, but they can also bite you quickly in the a$$, much like a manual boost controller. Countless people have wound up with broken ring lands, using both zener diodes and manual boost controllers, combined with low quality fuel, or not enough fuel. Think twice about using them.
Using a manual boost controller or zener diodes, and you removing safeguards put into the Chrysler software from running excessive boost. You think your broke now, how broke will you be if you need to replace a piston or two? That being said, I would venture to say that almost everyone that has been running a modified TD/TM has used them in the past at some point or another. Whether they're willing to admit that is another thing.