Lionel F7's + MTH Premier Streamliners?

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Considering buying the current Lionel F7ABA offering and want some streamliners to go along with it. Does anyone have any experinece running/seeing these mated up with MTH's Premier  70 ft. ABS streamliners (2006 #2)?

• Wondering about couplers, trucks, car ride heights, diaphragm on lead car to A or B unit interferrrence?
• Can't tell if there are magnetic couplers on the cars...and if they're operable via an uncoupling track section (Fastrack)?

Newbie appreciates the help! Thanks!

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