Ok my question is, I wanna take a finance for a bike ( kinda short on $$ to buy one out

) but few guys told me there's no way im getting finance because:
1. I have no Social Insurance # ( im in a middle of getting my landed papers.)
2. I have no assets ( Just bought a house and we had to take a mortage under my wifes name, again coz i'm not landed yet

)
BUT.
The car i'm leasing is under my name, the way it worked is i signed my mom as a "guarantee" ( she has property assets) and they were fine with it.
Would somthing like ^^^ this work if i sign my wife? Or maybe you can suggest some Finance company that i can talk to? COz really i have no probs paying 300 bucks a month for a bike... HELP.

Sugestions?
Want to ride this summer