This grill does have the ignition button, and you can get the bulk adapter hose at most any sporting goods store.

Yep, you can boil a pot of water, though it will take longer by 5 - 15 minutes depending on whether there is a breeze, the amount of water, the size of the pot, etc. You can use a frying pan or skillet on it as well if the handle is oven-safe to above 500F (cast iron works best).

you might want to try Home Depot or some other hardware store.

No they do not carry such a thing. Sorry.

It is, but you will need a wrench to do so. It is collapsible, however, and has a relatively small footprint. If you desire an even smaller footprint, you could remove the towing handle as well. You will not be able to safely operate the unit without the stand, but nothing in the instructions or safety alerts indicates you cannot operate the grill with the stand in a collapsed position.

Yes you can cook with the lid down. In fact, that's how it should be used (reduces large flare-ups, even cooking, less smoke).

This is not the same as the SS grill. Here are some differences (and they are fairly superficial between the two models in my opinion):
The SS has electronic ignition
The SS has a movable stainless steel grill & heat tents, the Pro's are enameled
The SS has a stainless steel hood
The SS weighs 3lbs more
They are both the same size, take the same propane cylinder (and the 20lb tank with hose), have the same BTU output, and have the same usage/control features.

I assume you're talking about the kit that's available for the SS combo (hose + holder)? If so, it's not listed as an available product, an accessory, or even as a replaceable part (not a good sign). I would suggest contacting Coleman's customer support at 1-800-835-3278 to see if the kit is available for the Pro (functionally, it should work the same on either model).

It is already geared to used Propane gas and to my knowledge that is the only kind you can use with this grill.

A 20 pound tank and a hose.

Weight [without fuel]: 69 pounds

Sorry bro, you'll kill the burner mechanisms if you try to use charcoal or lava rock briquettes in these things. They're designed for propane, and pretty much propane alone.I know there are some grill makers that do make charcoal + gas combo grills, you'll have to do some shopping around.http://www.coleman.com/coleman/colemancom/detail.asp?product_id=9928-A50&categoryid=2010

I am using rock briquettes and it seems to be working fine.This doesn't come with the 20-pound adapter but you can get the Coleman-5-Foot-Pressure-Hose-and-Adapter from Backcountry.com. The grill is heavy but it's not really heavy enough to attach the 20-pound tank to it via a bracket. It would be better to put the propane tank on the ground.