600k house 5% downpayment 3% rate = $2,397.44/mth
mortgage insurance premium + tax at 10k on top of that mortgage = .........
30k down payment from unsecured line of credit at P+1.5%
aim to pay off in 5 year is $559.29/mth
这么大的房子,utility fee估计要400一个月吧,insurance,property tax(7k-7.5k)