I am looking to purchase a portable jump starter that will be powerful enough to start my 1978 FJ40 but can also be used for my boat. The 40 has the original 2F engine. Any recommendations on brands and CCA and peak power amp levels? Also, while an air compressor and all the extras would be fine to have, I don't really need them as I already have a separate portable air compressor, flashlights, etc. Thanks!