The best format to shoot in - provided your camera gives you the option - is RAW. That has been called a 'digital negative'. JPEG is a 'lossy' format which means that each time you open it you can loose some of the digital information. That does not ...
Depends on your hitch. If your hitch is large enough, you can at least tow a 6x12 covered UHaul trailer at 4400lbs. Depends on how big your Suzuki is also.
Anything Out There That Will Scan "Large Format" Will Be VERY Expensive. If You Can Live With Just Medium Format Scans, There Are A Few "Reasonably" Priced Models. If You MUST Scan Large Format I Would Suggest You Get Some Advice From Someplace That ...