Can it be done? I've got 30 in the freezer that I would like to put up. Any tips or things to watch out for? Thanks in advance

Low humidity and keep the flys away.
Lots of air movement will help.
After they are dry watch out for fur bugs.
Best to put them in the freezer after they are dry.

Makes sure you have a buyer. Then do what Clay said.

Dry them in a cool place or the leather will get burnt and limit their use.

How fast will they dry with 2 fans blowing on them. Mid 60s at night and low 80s during the day. Don't have to board them now but I'm off work due to Knee surgery and getting bored.

They should dry within 2-3 days with good air circulation but fans not blowing directly on the pelts.

Dehumidifier does wonders.

What happens if fans are blowing on them?

Use wire hoops for better air circulation

They dry. People do it all the time.

Get rid of your scrapings everyday will cut down on the fly problems

Make sure the fur is completely dry before boarding.And raise up on the nails.Cut off the ears and nose/lips so the fly eggs dont hatch maggots.
If fur is wet or even very damp I would use hoops.
80 is very warm to dry fur,keep them out of the sun,and keep a can of raid handy,and make sure they are scraped clean.

When pelts are dried to quickly the leather often looks and feels stiff and board-like. This type leather is tough to bend and if dried too quickly at very high temperatures, the skin cooks. When bent, the leather actually cracks. Areas where the leather has burnt will not tan properly and will be greatly reduced in value.

Spot on BC.

How many beaver are being tanned in this market?

About half of mine get tanned and sold direct and from the last auction it was easy to tell which ones went to the garment makers,about the top 10%(darks) or so of the half I shipped.
I dont think the OP is talking about beaver trapped in the summer,so no sense limiting your options by burning the hides.
It is akin to limiting your marketing options by selling on the carcass.

I've put up thousands of beaver with a fan on them. Haven't ever had an issue with them at NAFA.

I've tanned hundreds and never had a problem.

The op is not tanning and selling direct.

I don't think I've ever sold a beaver on the carcass.

Same story for me Steve.

Watch the NAFA video on grading (flowage to fashon) .It shows pelts that have been dried with heat,and how they are badly damaged.

Dadkins.asked about fans now we are talking about heat.

Make up your mind.

79 degrees with low humidity ala trapping season in the north will have a higher chance of harm versus 70 degrees with higher humidity ala summer in MN

Personally I find it hard to dry fur after March and will usually freeze until winter