The turbo recommendation was based on other posts with feedback from users that tow.
WOP is behind it so I am comfortable with reliability. I would spend a little more for these reasons.
I am not familiar with the turbo you recommended.
SRP-1 Not all feedback has been positive. I think they are working out the bugs and Six months from now it will be a great HPOP.
I have the Adrenaline and it works great with stock split shots so it should work great with smaller Hybrids.
Injectors, I would be concerned with 250's and hybrids. I would also be concerned with 238s and hybrids. I know Pocket has a thread on them and does his own tuning. I think he is the pioneer on what can be done with the 250 Hybrid on PMRs. In the recommendation posted by 389 Six Pack, no vendor recommended higher than stage II injectors for towing.
I don't know about the FRX you are talking about. The one I have is a regulated return and not a feed. It uses the fuel bowl mounted regulator and has springs that are used to adjust fuel system psi.
DP tuner recommendation. He currently runs there tunes and is a satisfied customer.
If I am a satisfied customer, I stick with the vendor.
In closing, the $3000.00 goal is only possible with injectors and 38r only. Realistically with my recommendations the OP is closer to $4200.00.
My recommendations/opinions are slanted towards reliability and towing performance.
Explain how a 238/100% or even a 500/100% is somehow going to create any more stress on a PMR engine than a 160/100 Stage II given proper tuning?
Tuning controls PW ICP SOI irregardless of injector specs. You are talking about injectors all with the same size nozzle. Tuning is controlling when and how much fuel is injected. Injector type and nozzle size effects how the tunes are configured to reach various rates, timing, and over all volume of fuel being injected but the tuning is what has final ultimately control but the injector controls the maximum limits tuning can reach but for practical purposes not minimum levels. Add in same nozzle size and.....
If you dump too much fuel at the wrong times its not going to matter whether its got 160CC or 1000cc of fuel at the ready those rods are going bye bye. Just look at how many stock injector turbo motors spewed rods and windowed blocks becasue of incorrect tuning.