I agree and would use anything - small bottle jack, small screw jack, CAMCO auxiliary, etc. to make sure I could go.
The manual stabilizers are simple bolt on and off, I think. If so, can you remove and have the washer welded at a muffler shop and then reinstall?
I added four additional jacks to my trailer (got tired of messing with the CAMCO auxiliary) which I got at a very reasonable price from eTrailer.com with excellent service.
2012 Ram 2500 CC CTD
2015 Jayco Jayflight 28BHBE