Your monthly instalment depends on a few factors.
If you need in-house loan, you'll probably take 3 years at 3.5%.
That works out to approx. 450+ per month.
If the interest rate is higher, or the tenure of loan is shorter,
it'll vary.
Other than the monthly instalment, you'll still be looking at
ancillary costs such as notably maintenance, which is highly
variable, depending on the condition of this ride.
A budget of $1k per month is likely to be over-budgeting by approx
10-15%.