As with any new car, drive it off the forecourt and you lose money.
As much as we all love and enjoy Westfields, they are rarely an investment to make profit, they're a kit car. Yes, perhaps some old pre-lits may make some profit or break even, but it needs a serious enthusiast to want it.
At 33K expenditure, even with a 23 year plate (non Q) you will possibly not see any + return or break even, sorry be prepared to take a hit, if you were to total up man hours to undertake the build it adds even more to your overall cost, but that's what we have all done, its the enjoyment and pride at the achievement.
Sadly when we sell our Westfields we only get what someone is willing to pay, you can get a wide choice of fun sports cars for 25k in Autotrader, that are far more practical. Sorry for the killjoy mode.