You might want to consider that the HD/Lowes/Wal-marts dont service their products. Which means you will still have to take them to the authorized dealer, who may or may not take it or you may not be a priority. You will pay a little more but you are set up better in the long run. You might try working a deal for extra blades etc, for throwing him some business. Never hurts to ask. They also have a recommended price from the factory, which he then marks up. Sorta like buying a car. Haggle with em.....

Doing NADA or online values aren't accurate because after that time each home is in a different condition. Look for a manufactured home appraiser and pay for an accurate value.

Is there a promo code for first time buyer?

Would be comfortable with a white paint? :) If you ca, go with SW...if you can go higher, then BM and there is another brand that costs more than BM but honestly BM is very good. I think "mid tier" is SW but I would recommend this over the standard Lowes or Home Depot brand. We have spent thousands of dollars painting(because we have a special needs child who loves using our walls like napkins) and SW for the quality and price have not let us down yet. We did a lot of work in our home too and it was a new construction tract build. All of the contractors in MD were charging a coupe of thousand for like every type of job and we were like forget that, we can do it ourselves. I will say it was challenging but again, we have a special needs child. With you and your wife, it may be TON easier than it was for us. In other words, if we can do it, y'all can too! ;)