Congratulations to you guys.
Remember, it
will be over and you will look back on this time as a great shared experience in you and ratbastid's lives together.
You are good people and things will work out for you for the best. The people where you live now will wish you well on your new move. Your new neighbors will welcome you with open arms. The people you sell the house to will remember you forever so be fair in your dealings with them. Hopefully your seller will do the same.
I have sold houses to people and for people for over 20 years. It is a very stressful time for everyone. You will not regret using a realtor for the sale of your house. She(he) will know things that you don't and will be a good person to 'vent' to on days when things don't seem to be going so well. Don't be afraid to ask for help when you need it. They say the four most powerful words are 'Can you help me?' Not many people say no.
There.......is that enough reassurance
.. It really is heartfelt.
P.S. Just a suggestion. Maybe trade off the $2,000. more on the price for the repairs that need done. You really don't want to be hassling with repairs to the old house with everything going on with the purchase/move of the new one. BTDT.
Good Luck. Keep us in the loop.