Okay, as long as you know that upgrading to a Mackinaw is a much bigger risk rather than a smaller one you could use a Mackinaw instead of Retriever for mining.
I donât personally mine in HS, but if I did I would try to maximise my defenses and fly something like this:
[Mackinaw, Mackinaw HS]
Ice Harvester Upgrade II
Ice Harvester Upgrade II
Damage Control II
Multispectrum Shield Hardener II
Compact Multispectrum Shield Hardener
Large F-S9 Regolith Compact Shield Extender
Compact EM Shield Amplifier
Ice Harvester I
Ice Harvester I
Medium Core Defense Field Extender II
Medium Core Defense Field Extender II
Valkyrie II x5
Now the downside is that this fit is a bit tight on CPU and powergrid, so I can imagine if you cannot fly it yet.
With Shield Upgrades, CPU management and Powergrid management at level 4 you should be able to fly the version below, once theyâre at level 5 you should be able to use the above fit.
[Mackinaw, Mackinaw HS lower skill version]
Ice Harvester Upgrade II
Ice Harvester Upgrade II
Damage Control II
Compact Multispectrum Shield Hardener
Compact Multispectrum Shield Hardener
Large F-S9 Regolith Compact Shield Extender
Compact EM Shield Amplifier
Ice Harvester I
Ice Harvester I
Medium Ancillary Current Router I
Medium Core Defense Field Extender II
Valkyrie II x5
One more thing, you mentioned you want to play with friends.
If you plan to mine with them it will help your mining fleet with your friends a lot if one of you can fly a mining support ship like a Porpoise or Orca. While those two ships arenât really useful as solo mining ships, theyâre magnificent for any mining fleet. Every mining fleet will want at least one of those ships, because of how they improve everyoneâs mining speed and range and bring utility in the form of compression and a huge ore hold.