I trained Hiding (GM) & Stealth (80) so I could get past monsters to reach what I wanted to hunt and to get to my body as needed. It's worth the time to train them to be able to get your gear back easily. Having some tithing points and a Paladin book lets you heal up after rezzing without reagents and a mystic book lets you make a Healing Stone to use after getting rezzed. A ninja book lets you use Animal Form to add +20 to your Stealth giving you GM Stealth when going after your body.I just couldn't overcome the potential loss of all of my gear in one fell swoop to either a Red or even a tough Monster. It made me play it too safe and that is what killed the Siege concept for me.
Being dry looted by a Red can happen but from what I've heard, most won't dry loot. As Freja said, just have some spare suits handy. I've got four spare suits for Tanivar and one spare for Landreu as needed. I'll make you some basic suits if you want to wander by Siege. I typically imbue LRC, MR6, SR12 on a basic suit.