I have a situation and looking for help or advice.

I own an Optoma HD66 3D Projector and it was working good, had it for a bit over 2 years until it died on me. apparently the power source and mainboard went bad so I was referred to Spectronix, www.justrepairs.com, to get it fixed. Shipped the unit to them, took them damn near two months to repair it. Got the projector back in time for Christmas because I brought my daughter a Wii U and wanted the projector back so she can have fun with it plus some 3d movies, now everything is back in working order.........except the HDMI port.... You know I was pissed. so I called Spectronix back, explained what happened, they took the unit back and offered to get it working since I had their 90 day warranty and from January to this day, my unit just been sitting there, im calling every week, checking the status to see whats going on, they claim they have to order a part, some sort of HDMI decoder chip, from overseas to fix my HDMI issue because it was not picking up any signal, but from January to the middle of this month and when i sent the unit back the first time, that too was a two month process?, Fed up, i just asked them to send my unit back and refund my money. My refund came before the unit because they almost lost it and I found a Optoma gt720 3D short throw projector on ebay for 140 bucks that just needed a DMD chip due to dead pixels. So I brought that and a new lamp because no telling whats the life on the current lamp and its a good thing because it came without a lamp but the unit works, powers up and recognizes a HDMI signal but got a few pixels but here is the kicker, my hd66 returns also and spectronix refunded me my money for parts and labor, assuming they were going to send my project back in the condition when i first sent it, bad parts and all, but to my surprise, they left the replacement parts inside so basically I got a semi refurbed hd66 thats working but no HDMI and my money back which went towards the ebay purchase.

What should I do? is there a way to restore my HDMI in my hd66 or can I take the DMD chip from my hd66 and swap it into the gt720? To be honest, I want to keep both because the gt720 I can use for family outdoor events or outdoor fun with the kids when we camp in our backyard and it will suck to have everything from HDMI to component/vga on the hd66 and I dont think ill get the full advantage of 3d from that either?

Need your help and advice guys.

I know this was a long read but thanks in advance.
-Thomas.