I am rewiring a horse trailer. I planned to solder the connections, but the only terminals I can find are the crimp-on type.

I went to www.mscdirect.com. They list some terminals that are described as solder-type, but they have heat shrink insulators already on them. Here's an example: http://www1.mscdirect.com/CGI/NNSRIT?PMPXNO=9195670&PMT4NO=10192090

How can I solder something like that?

What's the best type of terminal to use and where can I get them?