From length perspective, i’m sure you can find a 1” driveshaft spacer, so that you could use the stock length shaft and easily source one. The spacer would hurt angle in a tradition shaft but with CV it would be non issue. Making sure you get a quality spacer with the bolts going all the way through the flange would be key.
Something like this:
Buy RealTruck SUPERLIFT SUSPENSION Drive Shaft Spacer for Chevy/GMC 1/2 & 3/4 Tons | 4310 | Fits 1973-1987 Chevrolet/GMC 1/2 & 3/4 Ton Vehicles 4WD Vehicles: Wheel Adapters & Spacers - Amazon.com ✓ FREE DELIVERY possible on eligible purchases
www.amazon.com
Personally, I would have shaft modified to proper length. You lose the off the shelf availability, but perhaps you have the spacer in travel bag in case you need to limp it home.