Clone only structure of 9i to 10g

Hello,
Is there a way to clone the structure/metadata of a 9i database (Windows 2000 Server) to a remote server that's 10g (Windows 2003 R2 Standard x64 Edition)? I'm only interested in the structure/metadata since the table data in 9i are dropped daily and reimported. There's a lot of users, roles, db links, etc, that I want to transport into the 10g database. I've tried exp/imp, and I got a lot of errors. I was suggested to use RMAN, but I don't know how to use RMAN just to backup the structure/metadata of 9i, especially since the directory structure for the datafiles of the new server (10g) is different than the old server (we have a dedicated hard drive ready just for the datafiles in the new server). Also, I would like to increase the db size in the 10g server to 8K (the 9i has db block size of 4K). Any way to do that with RMAN? Thanks.

Thanks for the quick response. I've tried something like that, but I received errors. Here's what I typed in the 9i server:
exp system/******** full=y direct=y constraints=y indexes=y file=C:\backup\expimp\worows\full.dmp log=C:\backup\expimp\worows\log.txt rows=n;
I've copied the full.dmp file (only 10MB) to the 10g server. From the 10g server, I've used the imp command and got the following error:
Export file created by EXPORT:V09.00.01 via direct path
import done in WE8MSWIN1252 character set and AL16UTF16 NCHAR character set
. importing SYSTEM's objects into SYSTEM
IMP-00017: following statement failed with ORACLE error 29339:
"CREATE UNDO TABLESPACE "UNDOTBS" BLOCKSIZE 4096 DATAFILE 'C:\ORACLE\ORADAT"
"A\INFOTEST\UNDOTBS01.DBF' SIZE 209715200 AUTOEXTEND ON NEXT 5242880 "
"MAXSIZE 16383M EXTENT MANAGEMENT LOCAL "
IMP-00003: ORACLE error 29339 encountered
ORA-29339: tablespace block size 4096 does not match configured block sizes
IMP-00017: following statement failed with ORACLE error 29339:
"CREATE TABLESPACE "CWMLITE" BLOCKSIZE 4096 DATAFILE 'C:\ORACLE\ORADATA\INF"
"OTEST\CWMLITE01.DBF' SIZE 20971520 AUTOEXTEND ON NEXT 655360 MAXSIZE"
" 16383M EXTENT MANAGEMENT LOCAL AUTOALLOCATE ONLINE PERMANENT "
I also got a few other errors, mainly about it can't import some objects since they already exist in the 10g server (I created a new, blank database during 10g installation). I've created the "C:\ORACLE\ORADATA\INFOTEST\" directory on the 10g server before importing, and I don't know how to get around the block size issue (the block size in 9i is 4K, and I want to increase it to 8K in the 10g server). How can I get around all of this?
Some of the instructions I've read online are vague. Do I need to create a database on the 10g server before I use the imp command, or only just install the 10g software? I can drop the database I've created in 10g if I need to (it's only a test box). I can't upgrade the 9i server since it's a live production server. Any ideas? Thank you.

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