She helped us with the kids while my husband and I went back to school and the kids and Grandma had a wonderful time growing and learning with each other and we had peace of mind.Plus my Mom was a great lady ... so that really helped.I know your situation is a bit of a different  but still many valuable pluses that have already outlined... piece of mind, helping them and them helping you.

I want to get this one here http://www.repairclinic.com/PartDetail/Access-Panel/2339574Its not the exact piece for the furnace, but every online store I find it at I get an email from them saying the order is cancelled because they don't have one.This is the actual piece that fits the furnace I have but it doesn't have a picture and I think it would be harder to find.Vest access panel (champagne) S1-07319862031 http://www.repairclinic.com/PartDetail/Vest-Access-Panel-Champagne/2339573

You have all the pieces available for you...just not in place yet,  I agree with @Jeff McCaskey as far as other markets.  

My suggestion is to take a piece of each pipe to a legit plumbing supply house and ask them (and buy the supplies there). 

Although, everyone above has done a very good job of answering this questions, I'll put in my two cents.The stock market will freak out and overreact to every piece of news that comes out of there.  

I need to relieve some steam because that extra money I saved may not have been worth the piece of mind.

When you sign your paperwork at closing you'll note that a piece of paper will be put in front of you stating that you intend to make this your primary residence for the next 12 months.

Notice there you now have 2 pieces of grandma's estate which might make it easy to get the deal approved.  

I don't have experience, but I monitor this market a lot. t's extremely hard to find any piece a real estate near those campuses that actually works out financially.

Every piece was gone except for one small little square.