I really believe you can easily get the picture quality youre looking for, i have owned both rptv and now use a Toshiba lcd 16:9 1000 lumen projector, the cost of the Projector, screen and HDTV Directv box was about the same as the TV USED!!!
The picture is 106' and fantastic, the colors are unreal and the clarity is beyond what my old hi def rptv was.
You MOST DEFINATELY will like the picture you get, i have never looked back even for a moment. A HUGE bonus? it takes up zero room, works well in light (ever see glare on your tv screen?) and most importantly, the speaker placement becomes limitless!
I would recomend looking on ebay for the guy in Canada that rebuilds CRT projectors, his prices are fair and he knows everything there is to know about CRT projectors.
Enjoy!