AmyMay
Situation normal
You could look at forms of hoof support other than shoes - hoof boots are great, but not really designed for full-time use (although two of mine have worn them for an extended period each to deal with specific problems), or there are these hoof-cast things, which I think are a kind of plaster-cast, although not as rigid.
Look at a track system for the weight issue - Jaime Jackson's 'Paddock Paradise' book is great, although a little off the wall in places!
Or you could just get a lameness work up done. Find out exactly what is wrong with the horse - and then take it's shoes off and chuck it in the field........