has anyone done a towbar install on the astra 2 door hatch 2005-2010 ?

im looking into installing one but seems there could be 2 ways to mount them, depending on what you get, the L35 is easy and the bolts are already there, but i dont think anyone sells that type of towbar here, so i believe im stuck with the L48/70, but the question i have is do you need to drill holes in the boot to fit it? as i dont have any holes, so i dont want to order it to find out it wont fit, i know you can drill them but dont know if you are should do that or not.

https://workshop-manuals.com/vauxhal...hitch_l48/l70/

https://workshop-manuals.com/vauxhal...operation_l35/


this is the towbar that is recommend from where i am getting it from and as you can see its the L48/70, but yea just not sure about the holes ect, or do i have this all wrong?
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