For FLR(M), you don't need the Facebook/SMS messages. To prove your relationship is genuine and subsisting for FLR(M), you show your marriage certificate and the six (up to 12, if individually-addressed) items of official post sent to you both over the time since your previous visa was granted. That's it. No letters, no text history, no photos... Just the post addressed to the two of you at the same address over the time, and your marriage certificate. As for the post, it would help if you list what you have, with dates and whether it's just one name or both names on it. If you have 4 water bills and a council tax bill, and can get just one other source, depending on the dates of your documents, you should be close.
Finance section looks good. What is the earliest date shown on the first payslip and the date on the most recent payslip? Does that span six FULL months? And do the bank statements cover the same period and show all the payslip wages depositing in?
For Accommodation, you don't need anything from the prior residence. Just proof of where you are living now. Since you now own your home, you will need two documents:
1. the Land Registry document showing home ownership
2. the most recent mortgage statement.
So, that's it. Plus, the passports, miscellaneous application documents, receipts, etc. and you probably don't need all that you've included for your expunged misdemeanor. You probably just need to answer the relevant questions truthfully and include a document confirming the disposition of the case. But if you feel better including more, it wouldn't hurt.