Alternatives to a Colonoscopy? Can’t Afford One...

Are there any alternatives to a colonoscopy that can diagnose the level of inflammation in UC?
We have come to the conclusion we don’t think Remicade is working for me ( 😭😭 ) as I only get relief for a week or so and have started to develop fissures. However my doctor wants to see the level of inflammation before switching. A colonoscopy will cost around $2000 as I haven’t met my deductible yet. I don’t have the funds for it at this time, and the center where I would have to get it done, expects payment in full.

Is there any more affordable alternatives to a colonoscopy that can assess the damage I have going on?
I already get routine bloodwork done every 4 week Remicade infusion, which shows high inflammation markers.

The flex sigmoidoscopy is around the same price. I haven’t met my deductible which is $2000 then coinsurance kicks in at 80/20. The colonoscopy would be closer to $2500 and the flex sig would be around $2000 according to their estimates.. ☹️

I know I probably need it done, I just don’t know what options I have to afford it. Especially when they want it paid in full.

(That and I HATE getting them done. It’s pretty frustrating to have to pay thousands to feel like you’re being tortured for a day, even if it’s beneficial later on)