go to Classic Garage. You want 4 5.25 euro style, preferably w/h-4's in all. They sell Hella, but they also sell Wipro?, an indian brand that copies Cibie, not perfectly but adequately for a much lower price. The only reason for 4 H-4 bulbs is that the low beam will burn out the low bean filament of the H-4, and the high beam uses only the high beam filament of the H-4. The new Cibie low beam from Stern is certainly better, but about $150? a pair for low beams only. 4 wipros from Classic might be $70 for all. Remember the low beam is the harder one to make, so if you mix sets the high beam should be the cheaper ones. I have installed the Indian big square units, and the construction is similar to my old Cibies, with acceptable quality. They also sell Indian made 75w/70 H-4s, designed for standard wiring, possibly a little better if not tinted. Get several extra bulbs just in case. Putco Warehouse did sell a relay kit for $25, the cheapest around. You can always get the Indian Wipro and upgrade to Cibie easily if you want the absolute best, regardless of price. Handle bulbs carefully, use rubbing alcohol to clean, make sure rubber boot on back stays sealed, perhaps w/small dab of liquid rubber. Your wiring harness will have no strain because the load is the same, but relays help new or current light bulbs.
Good luck.