One thing to consider is getting things ordered that require the most lead-time.

Some items that can often be a 4-6 weeks are Hoods, radiators, grille inserts, windshield frames, gas tanks, steel fenders, rear end housings, etc.

Get these things ordered now, and if you are on a budget, at least call the vendor you plan to use for these items and check on the availability and/or time frame for delivery on those items.

Good luck.