Finally finished paying for this so suggestion time: https://backpack.tf/item/5235396839

1-of-1 Strange Cool Lightning Rod Shotgun FN: https://backpack.tf/premium/search?item=Shotgun&particle=703&wear_tier=1&texture_name=Lightning%20Rod

Paid for over 9 installments (was originally intended to be 8 payments of 50 keys each but the 6th installment ended up getting divided in two lots of 25 keys, these were called 6.1 and 6.2 in the trade notes). The Shotgun was included in the 4th trade when it was 50% paid for.

Installment 1: https://imgur.com/a/hDjHlCy

Installment 2: https://imgur.com/a/FwJEj62

Installment 3: https://imgur.com/a/i7KoSwk

Installment 4: https://imgur.com/a/pgPaRPq (Shotgun traded)

Installment 5: https://imgur.com/a/Oovybau

Installment 6: https://imgur.com/a/bNfXAy8 (Actually 2 separate trades which I've labelled 6.1 and 6.2)

Installment 7: https://imgur.com/a/cdwMaTh

Installment 8: https://imgur.com/a/1KqTCKV (Final)