If i were you I would go to the expense of buying Grand Manner (see links below).
Budget is about £40-£50.
Think you missed the bit about budgets Atheling, Grand Manner is 5 to 10 times more expensive than the budget.
Winston, one thing to think about is the size. I believe the Magister Militum buildings are the old Ian Weekley range
By the way Gripping Beast produce a resin church for £25. Probably more Anglo-Saxon than Norman/Medieval but would probably pass muster as a rural church or chapel.
Here is a pic of the Magister Militum church with a pretty quick coat of paint: https://1.bp.blogspot.com/-JI85JKkf7I8/XMiqFjwQf_I/AAAAAAAAD4I/sLcoIHpea80scHr5mBpT1NXZtwcCpV8jwCLcBGAs/s1600/100_8156.jpg
I don't know if you followed up my earlier post mentioning Hoka Hey. Their basic medieval church is £16. Probably needs a bit of work to render to walls but that shouldn't take too long. I must admit the Tabletop Workshop chapel does look very nice and is less than £20. I also see that "War World Gaming" produce an MdF medieval church in 28mm for less than £20. It may be in the Fantasy section. Looks quite nice.