First board. Heading to Baja this winter. Show me the light.

I'm 5'''9 170 pounds dude thats in good shape. I have not surfed in 5 years and when I did it was a couple month long surf trips. Looking to buy a board that I can have fun with in hopefully the southern area of Baja. Please recommend a board for me from my list or from somewhere else. The bold text are the sizes I'm considering. Also durability matters. As of know its the 6'10'' Walden Mini Mega Magic or the Blackfish in 6'4'' or 6'8''.
So far I have my eye on 3 boards and could use some help.
Walden Mini Mega Magic SLX Longboard $845
6'10'' 67ltr 85kg / 187lb or less
7'6'' 74 ltr 85kg / 187lb +

Modern Blackfish X2 Surfboard $420
6'0''20 3/4''2 5/8''36 ltrFCS M570kg / 154lb or less
6'4''21 1/4''2 3/4''40 ltrFCS M575kg / 165lb
6'8''21 1/2''2 7/8''44 ltrFCS M580kg / 176lb
7'0''21 3/4''3''48 ltrFCS M585kg / 187lb
7'4''22''3''52 ltrFCS M595kg / 209lb + -

Modern Blackbird X2 Longboard $460-$600
7'0'' 21 1/2'' 2 3/4'' 47 ltr FCS M5 80kg / 176lb or less
7'6'' 21 5/8'' 2 7/8'' 53 ltr FCS M5 85kg / 187lb
8'0'' 22'' 3'' 61 ltr FCS GX/6" 90kg / 198lb +
9'1'' 22 3/4'' 3 3/8'' 78 ltr FCS GX/7" ideal for all weights

THANKS
So far I have my eye on 3 boards and could use some help.
Walden Mini Mega Magic SLX Longboard $845
6'10'' 67ltr 85kg / 187lb or less
7'6'' 74 ltr 85kg / 187lb +

Modern Blackfish X2 Surfboard $420
6'0''20 3/4''2 5/8''36 ltrFCS M570kg / 154lb or less
6'4''21 1/4''2 3/4''40 ltrFCS M575kg / 165lb
6'8''21 1/2''2 7/8''44 ltrFCS M580kg / 176lb
7'0''21 3/4''3''48 ltrFCS M585kg / 187lb
7'4''22''3''52 ltrFCS M595kg / 209lb + -

Modern Blackbird X2 Longboard $460-$600
7'0'' 21 1/2'' 2 3/4'' 47 ltr FCS M5 80kg / 176lb or less
7'6'' 21 5/8'' 2 7/8'' 53 ltr FCS M5 85kg / 187lb
8'0'' 22'' 3'' 61 ltr FCS GX/6" 90kg / 198lb +
9'1'' 22 3/4'' 3 3/8'' 78 ltr FCS GX/7" ideal for all weights

THANKS