Intake manifold from Corsa to Agila?

Hello, I’m completely new here and also little forum experience. So I first ask a question in the room and like to take tips on where and how I really proceed in the forum. After hours of searching for an intake manifold for my Opel Agila I try the easiest way now. have bought me a Agila as a transition car which basically gives me more driving fun (if it runs) than expected. Problem is after a short time restless running (sawing) of the engine. LMM It’s not working. It’s only possible to drive with a disconnected plug, but it’s only limited, because the brake power amplifier doesn’t work anymore. According to Kreuzberg’s workshop, intake manifolds are broken. It’s hard to find for the small engine. If it’s Corsa at all. Can it fit? or can it be excluded? And if I can take only one Agila, what’s it like with the numbers (Bosch). Do they have to be 100% identical? For example, my number Bosch 0280600020 and possible purchase 0280600039 (BJ 2003) I am happy about every answer. If I don’t get any further I would have to separate myself from the vehicle (sigh!) And here still the vehicle data and thanks in advance for everyone who takes on the topic opel-agila-a-h00-1.0-12v-43-kw BJ 12/2000 Intake manifold Bosch 0280600020 GM 09157499 0035-388 WOLOHAF681G081052 and I don’t plan to change myself. the workshop would fit a used one.