Replacement Powerchair

Hi! My name is Pam and I'm trying to get a replacememt powerchair. I have multiple sclerosis and am confined to a wheelchair. My current powerchair no longer meets my needs. I now require more lateral support of my right side and right leg. Also, I am now on oxygen and need a way to carry an oxygen tank on my powerchair. I now live in a nursing home so Medicare will not help with the cost. My powerchair will allow me the"freedom" to go to/from meals and other activities. The tilt/recline feature also allows me to shift my weight to help prevent pressure sores.