If you bought that vk8m brand new, I'm sure you could've bought a spinet from ebay or
www.theaterorgans.com. The thing then would be getting it to the church. I have a Korg CX3 myself. It has 18 drawbars, no pedal bars and no leslie output. However, it IS one of the top-ranked organ clones out there, costing almost $2,000. I paid 1,800+ for mine. I love it though!
I recommend, if you bought your vk8m brand new to sell it and get a Hammond xk2, Roland vk-7 or vk-8, or Korg CX3 (vintage, it's cheaper but heavier).
The Hammond and Roland clones can connect straight to an 11-pin leslie. The Korg needs an adapter which runs about $300, but you can connect it to a regular amp.
They all allow you to connect a second keyboard, through midi, so you can have 2 manuals. The Korg, however, is the only one that doesn't allow you to connect pedals too. (I don't know where their mind was on this one.)
If you search on ebay, you can find either one of these for the price of a new vk-8m, so I think that's your best option....If you paid for it brand new. Otherwise, you can go with a cheapo spinet, which you can keep stationary and just use your keyboard.
Here are some pics of my Korg and the midi pedals that I made:
http://www.geocities.com/omniscientdeveloper/Hope this helps....