You should have no problem finding a citrus/orange leaner in a pack. I would recommend NOT training or topping them and allowing them to grow as a straight column. They are very thick-stalked and have no issues with supporting themselves unstaked or without a trellis and do better growing in this fashion. They also like a little extra veg time. Check out @CADMAN thread here: Organic Adventures - #207 by CADMAN He did an awesome organic grow with them.
@Floyd if you would like some more Orange Grove seeds let me know and I’ll get them right off to you. Your’s if definitely one on the more lanky Orange Groves I’ve seen. Cool!