Crossrating Questions

Shipping in less than a week for AECF, really wanted RW but did not want to wait till next October with a DAR

How hard would it be if i did AECF focusing on ET to cross rate to RW after 2 years with a strong consideration of reenlistment in mind?

Regretted not choosing RW at meps and slots were closed the day after. I still like aecf just curious of my cross rating opportunity.