The Solar Blvd 100w kit for $165 is almost exactly the same as what I built from another source. Mine is 23"x26"x 3" thick, and IIRC they list theirs at 3.5" thick. Theirs has folding legs which I have not yet added to mine. Theirs includes a questionable controller, but you can get a decent one on ebay to replace it, for ~$15. Or just bypass the controller if you keep an eye on the charging voltage. To me, it's not that hard to store or deploy this small package. I have a cable and padlock for it, but if someone does steal it, I'm out $150 give or take. Say $200 if they get everything. Same thoughts as to if it happens to get damaged.
If I had the Solar Blvd kit, I'd put the controller on the end of my cables, near the battery, anyway. Instead of on the panels.