Look for a Snapper Hi Vac. Mine was purchased new in 1996, was 700 bucks then. Still have all the original attachments. I mow 1 acre but don’t bag much. Recycling/ mulching is great. All parts are available aftermarket. Original Briggs 6 , does not smoke. Oil change every year. Wore out rear...
To test the primary circuit of your coil, one lead of multi meter to coil mount, one lead to primary connector, (ground connector wire unplugged) you should have continuity, Or ground as you call it.
It took 3 coils from Amazon to get the SRM 225 trimmer I was working on to run. Sent the 2 defective ones back….17 bucks for aftermarket versus 65 for Echo OEM coil. Guess what coils I will quote next job….?
I just looked at my 2007 LA120 42” deck. No painted springs. Two springs for PTO, 1 on deck for belt tension and 1 on PTO lever (which is the correct length.) Plus one much longer spring for drive belt idler.