Hi,
Welcome to the forum.
DONT BUY ANYTHING YET
Your first move is to find an instructor and get some training then think about buying kit. Your instructor will advise you on the wing motor combination that will suit you. Also the type of flying you want to do will have a bearing on the kit you choose again your instrutor would advise you .
As the sport is unregulated there are no medical requirements but if your problem is to do with pressure it may be a concern.
Have a read of the training blogs on the forum they should give you some idea of what to expect etc....
Hope thats been some help.
Cheers Col.....