Well, I'm not really sure if the minimum factory prices are comparable to a large mechanical kit.
If you start looking at their bigger stuff, the Pacific Rim kits were in the 7,000-8,000 yen range, and they're taller than the average Bandai MG. So it's 3-4 times the price of a minium factory figure, but boatloads more plastic.
Then you have the 1/12 Panzer IV, which is 490mm long, 220mm high and 3.2kg packaged weight but still only ~16,000 yen.
Plastic-wise the VF-1 probably has at the minimum double of what the Panzer does.
If we're placing bets on price I'd says 25,000-35,000 yen for just the fighter release. 40,000-50,000 yen for Super/Strike Gerwalk.
After that add the EMS/FedEx/DHL only shipping due to massive size and obligatory customs charges that larger packages have a harder time escaping. Definitely still under one thousand dollary-dos, but still hard to explain to your partner