Just sharing , in every products that you buy there is pros and cons . Be it the quality or is it suitable/ acclimatize to local environment as that is some thing to consider when buying it .
That in long run products will change its performance .
If you are looking for just good brightness , less sharpness and light path uniformity is not critical for PJ the UST are great product to use . If screen material are not sharp and uneven flatness at time happens and it is acceptable that the two combination will be a good decision purchase for you .
If your demand is of great sharpness , uniform brightness and long lasting PJ those conventional mid and standard throw lens PJ will be the choice. A good fiber glass base or poly vinly screen material will be ideal for you best fixed screen or motorize tab tension .
Lastly if space is constrain and like to watch with light on those item you selected will be applicable .
Hope that helps