Anybody have any experience with EliTech -LMG 10-W or 10Plus gauges? Worth getting? Thxs

I’ll be replacing my 3.5 ton Goodman soon. How do you determine if the lines need to be replaced? I’m on a concrete slab, so not sure how they are run.

We are near Colonial Beach, VA and have a 1282 sq ft manufactured home that has a 550 sq ft open area. In the open area it has a 9ft high vaulted ceiling. There are two 14"x5" rectangular runs of 45-50 feet in length. There are 12 floor vents. 5 of those floor vents are in the 550 sq ft open area. In the link below is what we are considering. ACiQ Extreme Series 2.5 Ton 16.8 SEER2 10kW Mobile Home Electric Furnace & Heat Pump System - R454B Inverter - ACIQ-30-HPD-MH / ACIQ-MH30BU3VWEC / ACIQ-EFS1020FD-MH | HVACDirect.com

I installed a Micro-Air Soft Starter about 3 years ago. All was fine until recently I noticed through the app (thank goodness I checked it once in a while) that I had several "faults." I saw dielectric fluid through the clear plastic cover all inside, and the bottom of the capacitors were browned. Micro-Air said it was on it's last leg (Daa). However, I also noticed my dual run capacitor was fried!! The wire from the contractor to the common was melted, and I noticed the common post was lose and leaking fluid. Now, what I am trying to find out is what caused what? Has anyone experienced this or know what happened? I've done some research online and have yet get a clear cut answer. Any feedback would be much appreciated. I sense installed a new Cap and a new Nu-Calgon Nu-Start soft starter. Thanks!!

is this a legit seller of refrigerant? https://www.crefri.com/products/r22-refrigerants?variant=48332873007359 or https://ontapcold.com others? thanks!