I'm assuming you actually meant to type "pay the extra to get a PIC type..."

As others have said, I'd have some heartburn with paying for the type without some more solid guarantees from the company.

Personally, I'd try to negotiate signing a promissory note to the company for the cost of training. It could be structured to be repaid out of your salary with the balance due in full if you should leave for some reason before the end of the note's term, but with the balance being waived should the company let you go.

In either event, I would try and work it out to pay the difference (depending on the amount) between the SIC and PIC type. As others have said, an SIC type is semi-worthless (another idiotic idea foisted upon us by the rest of the world). A PIC type won't be of much value as a low time pilot, but may serve to open doors down the road when you have accumulated more time.