Solutions to UKMT BMO1 & 2 Past Papers

Can anyone help on solutions to pre 2018 BMO1s and pre 2021 BMO2s?
UKMT's page states that hints and solutions are available in its two Olympiad Primer books. Has anyone bought these books that can confirm the solutions are in there in full?
I don't want to commit ££ if they are not what a self learner needs
Any advice appreciated

Yes, A Mathematical Olympiad Primer, with hints and solutions for BMO1 problems from 1996–1997 to 2010–2011; A Mathematical Olympiad Primer II, covering the period from 2011–2012 to 2022–2023. But in most of the cases, there is only one solution to each problem, unlike the AoPS website which provides many different solutions (from volunteers) for all AMC, AIME, and USAMO, USJAMO problems.