My wife has our 2nd in the oven and I'm glad I never got rid of my little zed as it's cheap fun and I know I'll be able to keep it . As said previously my car is a retreat from work, family , stress and I'm glad I've got it as it can distract you when times are hard ( for me that was loosing my dad )
All the work you've put into your zed I'd be really trying to keep it . Get rid of the tt and finance . Buy something practical yet affordable , having a children is stressful enough without worrying about debt imo
Oh and congratulations ..... There's is nothing in this world that comes close to having a son or daughter to love