BBS-4/10
BUSSMANN BBS-4/10 NSNB
The 2N, 8N, 9N 1939-1950 models are a common find at farm auctions, often at fair prices.
Buss BBS-4/10 Bussmann Fuse Cross Ref 1CT12 (Pack of 6)
Working with the PR1G1.5X50X3 Resin Fiberglass kit is pretty straightforward once you try it.