I will give you access to my Fiverr.com account.
I will send you the funds upfront in Bitcoin (Btc) + Paypal fees + your fees.
You login and make the payment(s) via Paypal
to be honest, connecting Paypal, Bank card payment accounts with someone's Fiverr account is not a good idea at all. everything can be compromised very easily.
OP, I did a similar thing before but using only my Fiverr account. I received clear requirements from the client, he knew what he was looking for, so there were no problems in mediation. not even for revisions.
Not only connecting paypal with someone else fiverr account is a bad idea but at the same time OP is giving access of his fiverr account to another unknown person which is also not a good idea. The person will evil mind can ruin the account too.
I will give you access to my Fiverr.com account.