Can't get out ,what's the best solution to put SSD drive

Not sure I follow your comment of the cables being to short here. If you do a direct swap out HD for SSD there is no cable issues as both use SATA and have the connections in the same location (using a SSD that is the same size as your HD). If you go with a 2.5 SSD then you can have some issues as the SSD SATA port is located in a slightly different place.

In any case I would use a dual drive setup - keeping the HD for data storage and using the SSD for OS & App storage. I wouldn't setup a Fusion drive here as the I/O of the drives is not matched (you'll have access & speed problems trust me!)

Follow this IFIXIT guide Dual HD (or SSD) install. In this case you're using a SSD Vs an HD as the guide was written with the idea of adding a second HD.

As to what to use for a SSD your systems SATA connection is only SATA I (1.5Gb/s) so you should stick with a SATA I (1.5Gb/s) or SATA II (3.0Gb/s) SSD for your primary drive, then moving your HD to the PATA carrier (SATA to PATA). Getting a SATA III SSD could create problems and is a waste of money as your system can't leverage the higher I/O speed.