In reply to LP:
It's nothing more complicated than a few sheets of ply/osb, some 2x4 and screws, your local builder's merchant will deliver that. Tool wise you'll need a tape measure, drill and a saw. Exactly what you build depends on the space, existing structure available and your ambition but even the most inept DiYer could build a training board. It's an easy day job unless your space is horrible or you ambition ambitious!
If you really can't face it then sketch up and or download some ideas then get quotes from local joiners.
jk