2nd hand pushchair/buggy for newborn that works well with Lascal Maxi buggyboard

[Namelessbabe]

Our current travel system used with our older kids isn't working so well with the buggyboard. Is definitely compatible but pushchair handle doesn't extend much so I struggle pushing it with tall 3 yr old on buggyboard. Looking to buy something 2nd hand that would work better for nursery run. Must be lie flat and parent facing for the newborn. Suggestions please!