James Richards, a 36-year-old hitman from Liverpool, was jailed for seven and a half years for his involvement in a planned shooting targeting Ryan Carvill.
The images, released by prosecutors, show the weapon and large sums of money he was to use to carry out the murder.
He ultimately returned south and did not go through with the plan.
A judge told Richards had agreed to murder a rival drug dealer for payment but then “realised the folly of what you had agreed to.”
Lord Young added that “you did eventually distance yourself from this scheme”.
Lord Young also noted Richards’ lack of previous violent offences and that most of his adult life had been “blighted” by drug addiction.
He imposed a three-year serious crime prevention order in addition to the prison term.
Richards admitted that between April 9 and 13, 2020, he was involved in serious organised criminal activity at locations in Glasgow, Lenzie, Liverpool, and elsewhere.
He took possession of an encrypted phone and a handgun, and travelled from Liverpool to Lenzie as part of the conspiracy.
Richards also visited locations where the shooting could take place, sites for dumping and burning vehicles, and discussed getaway vehicle requirements.
He ultimately decided not to go through with the plan because he was unhappy with the cars provided.
Ryan Carvill, the intended target, was described as an enemy of 35-year-old David Nisbet and his associate Declan McCuish, also 35.
Advocate depute Lindsay Dalziel said: “Nisbet entered into discussions with no less than three potential hitmen, but it was agreement with James Richards which reached an advanced stage.”
She told the court that McCuish ensured a flat was available for Richards to stay in, knowing full well it would be occupied by a hitman.
Nisbet made his intentions clear in a conversation, saying: “Mate, I will get someone to f***ing put a tool to a head tonight… this rat has to get got.”
After Richards withdrew, he was driven back south and later stopped by armed response police.
Nisbet and McCuish were jailed for 13 and 11 years respectively following their conviction for conspiring to kill Carvill.
Carvill himself, 32, who split his time between Glasgow and Dubai, was jailed for eight years and three months earlier this year.
He was convicted for his role in a major drug trafficking operation that funded his lifestyle.
Richards’ defence counsel, John Scullion KC, said his client became involved in the plot in an attempt to repay drug debts.
Mr Scullion said: “He has a lengthy history of drug misuse and became involved in this offence in an attempt to settle debts to those who supplied him.”
He told the court Richards soon realised he was not capable of carrying out the shooting and tried to find a way out.
Mr Scullion said: “He raised issues to get out of something that he regretted becoming involved in.”
The Crown Office released images showing the handgun and cash intended to be used in the murder plot, highlighting the seriousness of the criminal scheme.
