Without seeing it, can you Zip Tie the Spring then cut the Tie once it's in place or close to it?
Chris Bryant has a lot of manuals up on bryantrv.com and maybe yours is there. Our N811 has no springs, but the door is so non-rigid that we have to push the lower corner of the door with a knee when we latch the door.
If God's Your Co-Pilot Move Over, jd
2003 Jayco Escapade 31A on 2002 Ford E450 V10 4R100 218" WB