I don't think he's tense in his spine- but it's hard to test because pushing on it while he's standing just makes him have to put his bad leg down and I don't like dong that. If I pet him there when he's laying down he just rolls over for tummy rubs but that's normal.
He's not keen between the toes on that leg though. I did notice the other night as I was trimming his nails that he's not keen on me manipulating that paw. No major reaction he just tries to pull it away more often than he would normally. He's usually pretty relaxed having his nails done.
I'm not sure how to upload video here unfortunately. But the rehab vet got back to me Monday and we started the referral process so she can get access to his medical records. Hopefully we can book an appointment soon. Still waiting to hear back that they received the referral.

I haven't taken any videos yet, but I can say that he had his first visit with the rehabber and I thought it went quite well. She was very thorough, the appointment was about 1.5hrs long and she had a ton of information for me. Basically Crush is having some issues with his leg, but needs to increase his low-impact activity. He has a sore lower back and groin muscles, and a sore cruciate on his right leg. She said it's definitely not torn but to stop any high impact activity. I need to think a bit about how to do this- sometimes it's really hard to keep him from jumping around, especially at dinner time. As soon as he sees his food bowl he starts jumping in the air.
She did note that his right hind leg was only bearing about 15% of his body weight (compared to 30% on the left hind) and the muscles have atrophied on that leg. It's several centimeters smaller in diameter than his other leg. She wants it stronger so we have some exercises and stretches to do at home, and he can start going for 5 minute walks, provided we keep them calm and flat. If he handles it well, we can up it by 2 minutes every week. She's putting him back on metacam and she's going to check in next week to see how that's going, we might add gabapentin if he's still having symptoms of nerve pain.
I feel better now that I have more information, although I'm a little worried about that cruciate. Trying not to be too paranoid though, the vet wasn't super concerned, just wanted to keep it from getting worse.
I can see that his exercises are harder for him on the one side, but hopefully over time we'll see improvement. His attitude has been much better, although he slept the whole next day when we got home from Kelowna- it was a big trip for him.

The clinic is called Tri-lake referral center, the vet I saw there has her own webpage here: https://www.tar.....wards.vet/
I have lots of pre-amp pictures, but I haven't been taking any since then as I've been too busy focusing on Crush to have my phone out. I'll see about taking some soon that I can share with you. 

Thanks guys, happy to share! I am also very glad he's doing so well, and he is super happy to be able to go for walks again. He's at 7.5 minutes a day now, I think when we get over 10 I'll start driving him around to some more interesting locations for his walks. Right now we're just sticking to our neighbourhood, but he's still pretty happy about it.
He enjoys his exercises too since he gets lots of treats. He's not crazy about having his knee iced for 10 minutes every time we do activity, but he tolerates it as long as he's being pet continuously, lol.
Jerry, did you hear back from Dr. Edwards?