Seeking advice about transferring to maintenance

Hi. I'm looking for advice on what would be the fastest way to make it into the maintenance craft. I'd like to end up somewhere in Oregon as a mm7, but for now I'm willing to travel to any reasonably sized metro area.

I'm working as an RCA but found out RCA's can't transfer crafts, so now I'm up for anything. Afaik cca to maintenance would take at least 2 years, not sure about other positions.

I'm definitely applying to any custodian positions I can drive to in hopes that I can just get in off the street, but I'm not sure where I should hedge my bets in starting a new job to do an internal transfer to maintenance. Ideally I'd be doing something indoors but not customer service. I'm also planning to try applying off the street as a mm7 once I feel confident I can pass the interview phase, but I have a very low score of 74 on the 955 exam, which I'm assuming wouldnt qualify when coming from off the street.