@ kik123 - I think you should definitely 'rudi ocha'. If I get you right,you are not going to leave under the same roof with your parents. There is a piece of land where you can build a temporary house as you save to get yourself something better. Go for it. If your wife is smart enough,she will limit interaction with her inlaws to the 'normal,respectable' levels. If there is no (too much) sharing of anything,things ought to work out just fine.
What you should do though,immediately you move,talk to your boss to deduct 13k (or even 8k) from your salary and send it to a different account,or sacco or whatever. If you don't do this,your expenses will definitely rise to meet the 'extra income' (in terms of increased liquidity).
Imagine this,if you save the 13k per month,you will have saved a cool one million in seven years while more or less maintaining your life style. And that's assuming you simply put the money in an account and don't invest. The fact that you are an SKerian,I'm sure you do some sort of investment. Now imagine instead of saving the money you actually sink all this money into a well thought out investment every month and then compound the earnings over this period! I rest my case. Move brother move.
@ Impunity - Spot on. The mama either tops up the extra 5k or puts up and shuts up. Many men have been driven to financial ruin because 'the wifey said this...','The wifey said we need a plasma telly/an SUV (like 'mama Jimmy's')/club membership/etc. etc.'. I know a guy who built a house (huge house with a magnificent compound) in Garden estate and the wife refused to move coz she wanted to continue leaving in a two bedroom apartment in Kile coz of friends/proximity to CBD etc.'. The jamaa got movers,moved most of the stuff (left some for the wifey) and told her that any time she wants to join him in Garden estate,she's free to do so. That time came before a week was over!!!!
Never count on making a good sale. Have the purchase price be so attractive that even a mediocre sale gives good returns.