If you take a look at the download section you´ll notice that are tons of custom shards ready for download. If they don´t have a race system (i doubt it, but haven´t checked out to much from them..) just take a look at the scriptsharing collection there are a bunch of well system races. (i´ll attach it here anyway).
Check the packs because you can find interesting things for your purposes:
http://forum.spherecommunity.net/sshare....t=6&page=2
Maybe some of these scripts from scriptsharing doesnt work properly but they are very easy to tweak, check the spherewiki wich link is at top of the page, in a few days you will learn how to modify and make them work they you want everything is very well explained and makes it way more easier to learn.
And finally here´s a little gift, courtesy of it´s owner:
http://in-uo.net/forums/showthread.php?9...ng-scripts
https://github.com/jyourstone/imaginenation
(unzip the folder from github in your hard disk, then go to this webpage
https://www.dropbox.com/sh/s5nmspn8gjg2j4j/g6mfSTZh-m
and download everything. The muls and statics must be in uo directory the rest in the runuo one).
Finally press the .bat file and run the exe that is generated, open the client and play...
it comes with custom statics,old menus style, fully spawned world with npcs, deco, etc. It reached more than 200 players around 2010 if i remember well...
imho the best rp shard i played, it has vampire and orcs races and it´s fully orinted to rp events,items,npcs,player rp stories... It´s a runuo shard replicating sphere 0.51a combat system and mechanics (pretty well i have to say but i aways prefered the real deal).
You can have this one and make in sphere other with your ideas, switching between boths whenever you want... more funny i guess.
Hope you and your friends find it cool, enjoy it!