Hey Romeo, I just thought I would answer your question up here since it was posted so far down the page it may not be seen. 
"He has layed in the hideout all day and won't come out and won't eat I fear there is something wrong.
Romeo"
If I remember correctly this is a new Uro, and a new hide? It can take him awhile to adjust to his new surroundings, now that he has a hide he may use it a lot until he is more comfortable, particularly in an all glass set up.
Given your temporary set up though, it may also be a sign of an additional problem, it is really hard to tell. He may be sleeping more because the tank is too cool, he could be getting slightly dehydrated, it is really impossible to say, imho. I know you are planning on building a new tank this weekend, but keep in mind it may need to air out for quite a while depending on what you build it out of. If you seal it it can off gas for a couple of weeks, if you use polyeurothane, it can be closer to a month . Just something to consider regarding how long the little tyke is going to be in the 10 gallon tank vs setting him up in a rubbermaid tank.
I wish I had an easier answer to your query, maybe others will have some additional ideas. 
Elizabeth
-----
1.0 Mali Uro Archimedes
0.0.1 Egyptian Uro Zuberi Mosca Khu (Mosca)
0.0 Fish
0.1 Sulcata Minnie
1.1 Iguanas Flik and Loki
0.1 Newfoundland Jasmine
0.1 Feline Winter
Indiana & Wisconsin



