Picking a 4K Projector for 150" Cinema

[Symbian41]

Hi everyone,

I’m building a dedicated movie room in India (14x16ft) and need advice on choosing a "Cinema First" 4K projector. I’ve used AI to create a summary of the current market prices and specs, but I need real-world feedback from the videophiles here.

My Setup:

• Room Size: 14ft x 16ft.
• Usable wall size for screen 11ft 2 inch
• Throw Distance: 16 feet (Back wall mounted).
• Screen: 150-inch pull down manual.
• Usage: 100% Movies (NO gaming).
• Source: Playing 50GB–80GB 4K MKV Remux files via VU QLED 65 inch TV
• TV - 65QMP (Masterpiece Glo Series)
• Audio: Yamaha RX-V3072 AV Receiver (HDMI Passthrough).

Ultimate Pro-Level Comparison (Cinema Focused)​ Rank Model Light Source Brightness (ANSI) Color Gamut Throw Ratio Contrast Lens Shift Price (INR / USD) 1 BenQ TK710 Laser 3200 95% Rec.709 1.15 – 1.50 600k:1 V (+10%) ₹1,45k / $1,600 2 Epson TW7100 Lamp 3000 100% Rec.709 1.32 – 2.15 100k:1 V±60% H±24% ₹1,50k / $1,655 3 ViewSonic LX700 Laser 3500 98% Rec.709 1.06 – 1.45 3M:1 V (+15%) ₹1,38k / $1,520 4 BenQ GP520 4LED 2600 81% DCI-P3 1.2 Fixed 200k:1 Auto Only ₹1,25k / $1,380 5 Epson TW6250 Lamp 2800 90% Rec.709 1.32 – 2.15 35k:1 V±60% ₹1,05k / $1,160 6 ViewSonic PX701 Lamp 3200 90% Rec.709 1.50 – 1.65 12k:1 Digital ₹95k / $1,050 7 Optoma UHD33 Lamp 3600 92% Rec.709 1.50 – 1.66 1M:1 None ₹1,15k / $1,270 8 Acer H6815BD Lamp 4000 85% Rec.709 1.50 – 1.65 10k:1 None ₹1,05k / $1,160 9 XGIMI Horizon Pro LED 2200 92% DCI-P3 1.2 Fixed Low Digital ₹1,35k / $1,490 10 BenQ TK700 Lamp 3200 96% Rec.709 1.13 – 1.46 10k:1 None ₹1,18k / $1,300

My Specific Questions:

1. Lens Quality at 16ft: With 80GB MKV files, I don't want the projector glass to be the bottleneck. At a 16ft throw, which of these maintains the best focus across a 150" area?
2. Dust & Heat (India): Are the Laser units (BenQ/ViewSonic) truly sealed against dust? In my city, dust is a major issue for internal optics.
3. AVR Handshake: Any known issues connecting these newer 4K models through an older (but high-end) Yamaha RX-V3072 for 4K/HDR signals?
4. Alternatives: Are there any other brands in India (like Sony, Samsung, or LG) worth considering under 1.5L for a purely cinematic experience?

I'm leaning towards the BenQ TK710 because of the laser longevity and sharpness, but would love to hear from anyone with a similar 150-inch setup.
Thanks for the help!