First off, you will be down sizing from your SB house. This is very freeing. When you go full time you will find you need MUCH less than when in that house. Items and my thoughts:
1) 6' Ladder or folding type ladder Get a ladder that you will use. I have a 15' collapsible to get on the sides and roof if needed. -
2) Bigger toolbox and more tools Carry normal house hold tools for doing new lights, hang items, change sink or toilet then special tools for the RV - don't carry a whole lot as they add weight FAST and probably won't be used. You can rent tools at almost all home improvement centers.
3) More cookware - Why? No storage space, don't use it much and besides eat out more!
4) More clothes, linens, etc.- No not needed. Take what you will wear and a couple of nice go out outfits.
5) Another Directv receiver -Again, why? They'll FedEx one over night if yours goes bad.
6) More DVD/Bluray's and CD's - Red Box almost everywhere !
7) Wife's jewelry and fireproof safe for important papers - Yes and keep it somewhere you can grab it if yo¨need too quickly.
8) More cleaning stuff plus laundry stuff. - No, buy and use as needed, don't carry it around.
We have done this for over 5 years, learned from a FT doing it for 25+ yrs.