You can get a seat that puts you further back.
You can get dropped floor boards from Kuryakyn: http://www.kuryakyn.com/products/430...rt-drop-mounts
Roadsmith makes a brake and shifter relocation kit if you want more leg room: http://trikeshop.com/news/4192012/
There are various handlebar riser kits as well as the Helibar kit which is the most versatile: http://wingstuff.com/products/35632-...ccessories-f6b
There are multiple aftermarket windshields, some are further forward to give you some more room.

HTH