Ok need a bit of help here

i bought a very cheap car to fix and sell now the problem is
that it has 6months t&t but i have been getting silly quotes for
1 months insurance as i plan to use it for a couple of weeks to make
sure no gremlins arise before i sell it, plus need to take it to a body
shop ect.

so is there any other way i can get insurance on this for such
a short time ?

any help and advice would be great

thanks Martin