Seeking Mechanic to Change Out Allison Transmission

Purchased this converted school bus locally and drove it 40km before transmission failed. Found like new Allison refurbished transmission near Blaine, WA to pickup. Looking for skilled mechanic to drop out old transmission and install. Ideal mechanic would have space to park the bus and work on it as a side job on a paid project price. No rush. Bus would be towed to you on Vancouver Island. Bus would also be available to mechanic or guest to live aboard, as needed, for a reasonable period of time. Ideally bus would be ready to drive again by early fall. Bus drove cross country less than 3 years ago. Here are Youtube videos to see the original conversion: https://www.youtube.com/c/RunawayExpedition