Best Greenhouse Kits - HELP!

[Uechi]

I checked the threads and with a few exceptions I can't find much on Greenhouse kits. There are literally dozens of sites selling kits. The problem is knowing which ones are good and which ones are crap. I am looking for 150 to 200 sq ft greenhouse kit. Many choices available, but I have read horror stories of kits with worthless installation instructions or ones requiring a PHD to install. Another issue is shipping. Many sellers offer free or moderate shipping none of them tell you that you have to unload the truck yourself. Since some of these kits weigh hundreds of pounds I don't want to be stuck. I assume forum members with kit greenhouses could let us know which kits they like and which kits are a problem. Everytime I look on line at the myriad of kits I get confouned by all the choices. The last thing I need is a lousy kit with poor instructions that won't be off loaded by the driver.